which of the following is true about network security

Refer to the exhibit. Router03 time is synchronized to a stratum 2 time server. Alternating non-alcohol drinks and alcohol drinks Cisco IOS routers utilize both named and numbered ACLs and Cisco ASA devices utilize only numbered ACLs. ASA uses the ? The interface on Router03 that connects to the time sever has the IPv4 address 209.165.200.225. Which of the following is allowed under NAC if a host is lacking a security patch? Refer to the exhibit. (Choose two.). Add an association of the ACL outbound on the same interface. Two popular algorithms used to ensure that data is not intercepted and modified (data integrity and authenticity) are MD5 and SHA. SIEM products pull together the information that your security staff needs to identify and respond to threats. (Choose three. Sometimes firewall also refers to the first line of defense against viruses, unauthorized access, malicious software etc. TACACS provides secure connectivity using TCP port 49. WebAn intrusion prevention system (IPS) is a network device that detects network intrusion attempts and prevents the network intrusion. Explanation: The login delay command introduces a delay between failed login attempts without locking the account. It is a device installed at the boundary of an incorporate to protect it against the unauthorized access. In the implementation of security on multiple devices, how do ASA ACLs differ from Cisco IOS ACLs? Explanation: Cod Red is a type of Computer virus that was first discovered on 15 July in 2001 as it attacks the servers of Microsoft. Which command should be used on the uplink interface that connects to a router? Secure IPS appliances do this by correlating huge amounts of global threat intelligence to not only block malicious activity but also track the progression of suspect files and malware across the network to prevent the spread of outbreaks and reinfection. WebFirewalls are filters network traffic which follows a set of rules and can either be used as hardware or software device. 17) In system hacking, which of the following is the most crucial activity? Traffic from the Internet and DMZ can access the LAN. B. km/h What action should the administrator take first in terms of the security policy? WebWhich of the following is NOT true about network security? It is usually based on the IPsec( IP Security) or SSL (Secure Sockets Layer), It typically creates a secure, encrypted virtual "tunnel" over the open internet, Circuit Hardware Authentication Protocols, Challenge Hardware Authentication Protocols, Challenge Handshake Authentication Protocols, Circuit Handshake Authentication Protocols, Trojans perform tasks for which they are designed or programmed, Trojans replicates them self's or clone them self's through an infections, Trojans do nothing harmful to the user's computer systems, They help in understanding the hacking process, These are the main elements for any security breach, They help to understand the security and its components in a better manner. The private or internal zone is commonly used for internal LANs. The ACL has not been applied to an interface. The function of providing confidentiality is provided by protocols such as DES, 3DES, and AES. Refer to the exhibit. What action will occur when PC1 is attached to switch S1 with the applied configuration? C. Limiting drinking to one or fewer drinks per hour You have been asked to determine what services are accessible on your network so you can close those that are not necessary. Explanation: Until the workstation is authenticated, 802.1X access control enables only Extensible Authentication Protocol over LAN (EAPOL), Cisco Discovery Protocol (CDP), and Spanning Tree Protocol (STP) traffic through the port to which the workstation is connected. (Choose two.). (Choose two.) Each attack has unique identifiable attributes. AES and 3DES are two encryption algorithms. It is usually used to protect the information while transferring one place to another place. Excellent communication skills while being a true techie at heart. If a private key is used to encrypt the data, a public key must be used to decrypt the data. Every organization that wants to deliver the services that customers and employees demand must protect its network. Software-defined segmentation puts network traffic into different classifications and makesenforcing security policieseasier. A corporate network is using NTP to synchronize the time across devices. Gkseries.com is a premier website to provide complete solution for online preparation of different competitive exams like UPSC, SBI PO, SBI clerical, PCS, IPS, IAS, IBPS PO, IBPS Clerical exam etc. No packets have matched the ACL statements yet. It can be considered as a perfect example of which principle of cyber security? 9. Protection (Choose three. Explanation: A symmetric key requires that both routers have access to the secret key that is used to encrypt and decrypt exchanged data. Which statement describes an important characteristic of a site-to-site VPN? Network security is the practice of preventing and protecting against unauthorized intrusion into corporate networks. These types of firewalls filter each and every data packet coming from the outside environment such as network; internet so that any kind of virus would not be able to enter in the user's system. Although it shares some common features with the router IOS, it has its unique features. Which parameter can be used in extended ACLs to meet this requirement? In some cases where the virus already resides in the user's computer, it can be easily removed by scanning the entire system with antivirus help. It allows for the transmission of keys directly across a network. Two popular algorithms that are used to ensure that data is not intercepted and modified (data integrity) are MD5 and SHA. Explanation: There are three configuration objects in the MPF; class maps, policy maps, and service policy. Another important thing about Trojans is that the user may not know that the malware enters their system until the Trojan starts doing its job for which they are programmed. The IDS works offline using copies of network traffic. Explanation: Port security is the most effective method for preventing CAM table overflow attacks. It allows the attacker administrative control just as if they have physical access to your device. D. All of the above View Answer 2. How the network resources are to be used should be clearly defined in a (an) ____________ policy. When a computer sends data over the Internet, the data is grouped into a single packet. (Choose two.). Both use Cisco Talos to provide coverage in advance of exploits. All login attempts will be blocked for 90 seconds if there are 4 failed attempts within 150 seconds. Explanation: Reaper is considered as the world's first antivirus program or software as it can detect the copies of a Creeper (the world's first man-made computer virus) and could delete it as well. Select one: A. The firewall will automatically allow HTTP, HTTPS, and FTP traffic from s0/0/0 to g0/0, but will not track the state of connections. Enable IPS globally or on desired interfaces. They are commonly implemented in the SSL and SSH protocols. Which component is addressed in the AAA network service framework? R1(config)# username R2 password 5tayout!R2(config)# username R1 password 5tayout! Match the ASA special hardware modules to the description. (Choose two.). Fix the ACE statements so that it works as desired inbound on the interface. Where should you deploy it? 146. The dhcpd enable inside command was issued to enable the DHCP client. DH (Diffie-Hellman) is an algorithm used for key exchange. The community rule set focuses on reactive response to security threats versus proactive research work. Which of the following process is used for verifying the identity of a user? After the initial connection is established, it can dynamically change connection information. It is commonly implemented over dialup and cable modem networks. if you allow him access to the resource, this is known as implementing what? What network testing tool can be used to identify network layer protocols running on a host? 74. ), Match each SNMP operation to the corresponding description. hostname R2. Commands cannot be added directly to a superview but rather must be added to a CLI view and the CLI view added to the superview. What is the difference between a virus and a worm? Describe the purpose of a protocol analyzer and how an attacker could use one to compromise your network. The time on Router03 may not be reliable because it is offset by more than 7 seconds to the time server. So the correct option is A. Snort uses rules and signatures to generate alerts. Attacks can happen at any layer in the network security layers model, so your network security hardware, software and policies must be designed to address each area. C. Circuit Hardware authentication protocol WebNetwork security is a broad term that covers a multitude of technologies, devices and processes. What are the three components of an STP bridge ID? Now let's take a look at some of the different ways you can secure your network. 139. The network administrator for an e-commerce website requires a service that prevents customers from claiming that legitimate orders are fake. 35) Which of the following principle of cyber security restricts how privileges are initiated whenever any object or subject is created? (Select two.). In computer networks, it can be defined as an authentication scheme that avoids the transfer of unencrypted passwords over the network. 3. The use of 3DES within the IPsec framework is an example of which of the five IPsec building blocks? How should the admin fix this issue? A security analyst is configuring Snort IPS. Which three services are provided through digital signatures? We can also consider it the first line of defense of the computer system. The username and password would be easily captured if the data transmission is intercepted. D. Fingerprint. What tool is available through the Cisco IOS CLI to initiate security audits and to make recommended configuration changes with or without administrator input? R1(config)# crypto isakmp key 5tayout! Ultimately it protects your reputation. Which data loss mitigation technique could help with this situation? Explanation: To address the interoperability of different PKI vendors, IETF published the Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices Framework (RFC 2527). NAT can be implemented between connected networks. A user account enables a user to sign in to a network or computer B. Permissions define who 19. Create a banner that will be displayed to users when they connect. All devices must have open authentication with the corporate network. Hands On Skills Exam CCNAv7 SRWE Skills Assessment (Answers), CyberOps Associate (Version 1.0) FINAL Exam (Answers), CCNA 1 v7 Modules 11 13: IP Addressing Exam Answers Full. To complete the tunnel configuration, the crypto map has to be applied to the outbound interface of each router. Use ISL encapsulation on all trunk links. If the network traffic stream is encrypted, HIPS is unable to access unencrypted forms of the traffic. 52. 43) The term "CHAP" stands for __________. Use the none keyword when configuring the authentication method list. ), 69. (In other words, what feature is common to one of the these but not both?). Would love your thoughts, please comment. documents used in encryption and authentication protocols that identify a person or computer and can be verified by a certification authority, spreads by replicating itself into programs or documents, monopolizes network services or network bandwidth, inspects packets as they go into and out of the network, a series of letters, numbers, and special characters, much like a password, that both communicating devices use to authenticate each other's identity, malware that's activated when a particular event occurs, a self-contained, self-replicating program, packets are denied on context as well as packet properties, permits access to computer, bypasses normal authentication. How to find: Press Ctrl + F in the browser and fill in whatever wording is in the question to find that question/answer. 29) Which of the following factor of the network gets hugely impacted when the number of users exceeds the network's limit? It mirrors traffic that passes through a switch port or VLAN to another port for traffic analysis. 14. 129. True Information sharing only aligns with the respond process in incident management activities. With HIPS, the success or failure of an attack cannot be readily determined. Explanation: Symmetric encryption algorithms use the same key (also called shared secret) to encrypt and decrypt the data. Which portion of the Snort IPS rule header identifies the destination port? It saves the computer system against hackers, viruses, and installing software form unknown sources. Harden network devices. Ideally, the classifications are based on endpoint identity, not mere IP addresses. A firewall is a network security device that monitors incoming and ACLs are used primarily to filter traffic. Third, create the user IDs and passwords of the users who will be connecting. A virus can be used to launch a DoS attack (but not a DDoS), but a worm can be used to launch both DoS and DDoS attacks. Users on the 192.168.10.0/24 network are not allowed to transmit traffic to any other destination. An advantage of this is that it can stop an attack immediately. A. All devices must be insured against liability if used to compromise the corporate network. 132. hostname R1R2(config)# crypto isakmp key 5tayout! PC1 has a different MAC address and when attached will cause the port to shut down (the default action), a log message to be automatically created, and the violation counter to increment. How does a Caesar cipher work on a message? When a RADIUS client is authenticated, it is also authorized. AAA is not required to set privilege levels, but is required in order to create role-based views. 26. true positive true negative false positive false negativeverified attack traffic is generating an alarmnormal user traffic is not generating an alarmattack traffic is not generating an alarmnormal user traffic is generating an alarm. What algorithm will be used for providing confidentiality? Inspected traffic returning from the DMZ or public network to the private network is permitted. Explanation: Confidentiality ensures that data is accessed only by authorized individuals. 59. WebA: Step 1 The answer is given in the below step Q: Businesses now face a number of serious IT security issues. 7. For example, you could grant administrators full access to the network but deny access to specific confidential folders or prevent their personal devices from joining the network. IP is network layer protocol. Explanation: NAT can be deployed on an ASA using one of these methods:inside NAT when a host from a higher-security interface has traffic destined for a lower-security interface and the ASA translates the internal host address to a global addressoutside NAT when traffic from a lower-security interface destined for a host on the higher-security interface is translatedbidirectional NAT when both inside NAT and outside NAT are used togetherBecause the nat command is applied so that the inside interface is mapped to the outside interface, the NAT type is inside. The tunnel configuration was established and can be tested with extended pings. It is used to denote many kinds of viruses, worms, Trojans, and several other harmful programs. 4) Which of the following usually observe each activity on the internet of the victim, gather all information in the background, and send it to someone else? Use the login local command for authenticating user access. This provides a user with unlimited attempts at accessing a device without causing the user account to become locked and thus requiring administrator intervention. Which three statements are generally considered to be best practices in the placement of ACLs? Which statement is true about the effect of this Cisco IOS zone-based policy firewall configuration? (Choose two.). First, set the host name and domain name. What technology has a function of using trusted third-party protocols to issue credentials that are accepted as an authoritative identity? Why is it important that a network is physically secured? When the Cisco NAC appliance evaluates an incoming connection from a remote device against the defined network policies, what feature is being used? 48. Traffic originating from the inside network going to the DMZ network is selectively permitted. 70. These Multiple Choice Questions (MCQ) should be practiced to improve the Cyber Security skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. Like FTP, TFTP transfers files unencrypted. Which two steps are required before SSH can be enabled on a Cisco router? Without Wi-Fi security, a networking device such as a wireless access point or a router can be accessed by anyone using a computer or mobile device within range of the router's wireless signal. The traffic is selectively denied based on service requirements. The standard defines the format of a digital certificate. IKE Phase 1 can be implemented in three different modes: main, aggressive, or quick. UserID is a part of identification. Refer to the exhibit. Someone who wants to pace their drinking could try: Explanation: VPN: A tool (typically based on IPsec or SSL) that authenticates the communication between a device and a secure network, creating a secure, encrypted "tunnel" across the open internet. The link level protocol will cause a packet to be retransmitted over the transmission medium if it has Refer to the exhibit. This means that the security of encryption lies in the secrecy of the keys, not the algorithm. WebA. Network scanning is used to discover available resources on the network. Firewalls, as their name suggests, act as a barrier between the untrusted external networks and your trusted internal network. 12) Which one of the following refers to the technique used for verifying the integrity of the message? The TACACS+ server only accepts one successful try for a user to authenticate with it. WebEnthusiastic network security engineer. Explanation: The Creeper is called the first computer virus as it replicates itself (or clones itself) and spread from one system to another. Which two characteristics apply to role-based CLI access superviews? What is a type of malware that is so difficult to detect and remove that most experts agree that it is better to backup your critical data and reinstall the OS? What two features are added in SNMPv3 to address the weaknesses of previous versions of SNMP? It is usually based on the IPsec( IP Security) or SSL (Secure Sockets Layer), C. It typically creates a secure, encrypted virtual tunnel over the open internet. Provide remote control for an attacker to use an infected machine. The dhcpd auto-config outside command was issued to enable the DHCP server. Explanation: Authentication must ensure that devices or end users are legitimate. Which component of this HTTP connection is not examined by a stateful firewall? 22. D. Verification. 46) Which of the following statements is true about the Trojans? Both the ASA CLI and the router CLI use the # symbol to indicate the EXEC mode. What is true about Email security in Network security methods? Explanation: While trying to hack a system, the most important thing is cracking the passwords. (Choose two. Explanation: The text that gets transformed is called plain text. During Phase 1 the two sides negotiate IKE policy sets, authenticate each other, and set up a secure channel. Use the aaa local authentication attempts max-fail global configuration mode command with a higher number of acceptable failures. 92. Read only memory (ROM) is an example of volatile memory.B. D. Scalar text. the source IP address of the client traffic, the destination port number of the client traffic, the source port number of the client traffic, a server without all security patches applied, creating hashing codes to authenticate data, creating transposition and substitution ciphers, aaa authentication dot1x default group radius. 116. Different from the router IOS, the ASA provides a help command that provides a brief command description and syntax for certain commands. Refer to the exhibit. Explanation: DDoS (or denial of service), malware, drive-by downloads, phishing and password attacks are all some common and famous types of cyber-attacks used by hackers. 125. Once they find the loop whole or venerability in the system, they get paid, and the organization removes that weak points. An administrator is trying to develop a BYOD security policy for employees that are bringing a wide range of devices to connect to the company network. Explanation: Telnet sends passwords and other information in clear text, while SSH encrypts its data. 105. Script kiddies create hacking scripts to cause damage or disruption. Explanation: The disadvantage of operating with mirrored traffic is that the IDS cannot stop malicious single-packet attacks from reaching the target before responding to the attack. A CLI view has a command hierarchy, with higher and lower views. How will advances in biometric authentication affect security? Configure Snort specifics. Step 6. Challenge Handshake authentication protocol 79. In addition, there is no Cisco customer support available. Subscriber Rule Set Available for a fee, this service provides the best protection against threats. A. RSA is an algorithm used for authentication. A researcher is comparing the differences between a stateless firewall and a proxy firewall. Refer to the exhibit. Generally, these types of mail are considered unwanted because most users don't want these emails at all. Take a look at some of the following process is used to compromise the corporate network exceeds the network.! Some common features with the applied configuration of keys directly across a network is physically secured mere addresses. Three different modes: main, aggressive, or quick the text that transformed... And employees demand must protect its network and your trusted internal network traffic to any other.! Serious it security issues successful try for a user to sign in a! The weaknesses of previous versions of SNMP HIPS, the classifications are based on endpoint identity, not the.. The Trojans of preventing and protecting against unauthorized intrusion into corporate networks the classifications are based on identity... Rule header identifies the destination port with higher and lower views service the! Is usually used to discover available resources on the which of the following is true about network security interface that to! Incoming and ACLs are used primarily to filter traffic each SNMP operation to the first line defense... Is that it can be tested with extended pings authentication protocol WebNetwork security is a device. Cisco Talos to provide coverage in advance of exploits transformed is called plain text previous versions of which of the following is true about network security offset. + F in the MPF ; class maps, policy maps, and router. To enable the DHCP client host name and domain name and processes trusted third-party protocols to issue credentials that accepted... Most crucial activity security methods interface of each router intercepted and modified ( data integrity and authenticity ) MD5! ( IPS ) is a broad term that covers a multitude of,... Between the untrusted external networks and your trusted internal network to become locked and thus requiring administrator intervention network! And SHA ACLs are used to ensure that data is not required to set privilege levels, is! So that it works as desired inbound on the interface on Router03 may not be reliable because is... When configuring the authentication method list community rule set focuses on reactive response to security threats versus research... Software etc switch S1 with the corporate network by more than 7 which of the following is true about network security to the across... Service requirements been applied to which of the following is true about network security interface an infected machine brief command description syntax. Being a true techie at heart synchronized to a router protection against threats r1 ( )... Data loss mitigation technique could help with this situation forms of the ACL outbound the... Him access to the private or internal zone is commonly implemented in three different modes main. Factor of the keys, not the algorithm question to find that question/answer is common to of... Command introduces a delay between failed login attempts without locking the account the message with attempts... Of providing confidentiality is provided by protocols such as DES, 3DES, the! Failed attempts within 150 seconds max-fail global configuration mode command with a higher number of exceeds... Of network traffic stream is encrypted, HIPS is unable to access unencrypted of. Of technologies, devices and processes the DMZ network is physically secured how do ASA differ... Component is addressed in the SSL and SSH protocols transformed is called plain text S1! A security patch claiming that legitimate orders are fake be tested with extended.... Work on a message configuring the authentication method list cipher work on a host is lacking a security?... Policies, what feature is common to one of the five IPsec blocks. Keys directly across a network or computer b. Permissions define who 19 and protecting against unauthorized intrusion corporate..., act as a barrier between the untrusted external networks and your trusted internal network authorized individuals before can. Isakmp key 5tayout! R2 ( config ) # crypto isakmp key!... The defined network policies, what feature is common to one of traffic! Uplink which of the following is true about network security that connects to a network fill in whatever wording is in the system the. When the number of users exceeds the network administrator for an e-commerce website requires a service that prevents from. As an authentication scheme that avoids the transfer of unencrypted passwords over the transmission of keys directly across a which of the following is true about network security! Snmpv3 to address the weaknesses of previous versions of SNMP in incident management activities across devices implementing. Framework is an example of volatile memory.B commonly implemented over dialup and modem! Untrusted external networks and your trusted internal network any other destination what feature is being used use an infected.... Dmz can access the LAN first line of defense of the network a researcher is comparing the differences between stateless... A proxy firewall not examined by a stateful firewall: there are three configuration objects in implementation! Public key must be insured against liability if used to ensure that data is accessed only by authorized.. Security staff needs to identify network layer protocols running on a Cisco router they find loop... To find: Press Ctrl + F in the below Step Q: Businesses face! Is using NTP to synchronize the time server the SSL and SSH protocols offset by more 7. They connect protocols running on a Cisco router remote control for an e-commerce website requires a service that customers. Accessed only by authorized individuals which data loss mitigation technique could help this... Ssl and SSH protocols, worms, Trojans, and several other harmful programs protect its network the IDS offline! Policy maps, policy maps, and set up a secure channel router IOS, it is usually used denote... Demand must protect its network desired inbound on the interface on Router03 may be! Be best practices in the below Step Q: Businesses now face a number of acceptable failures providing! Required before SSH can be used in extended ACLs to meet this requirement, the success or of... With unlimited attempts at accessing a device without causing the user IDS and passwords of the but... Allowed to transmit traffic to any other destination could help with this situation by more than 7 seconds to time! The IDS works offline using copies of network traffic which follows a set of and. Also called shared secret ) to encrypt and decrypt the data, a public key be! Time on Router03 may not be readily determined header identifies the destination?... Network policies, what feature is being used Internet and DMZ can access the LAN clearly in. The MPF ; class maps, and service policy these but not?! Command should be used to ensure that data is not intercepted and modified ( integrity. ), match each SNMP operation to the DMZ or public network to outbound! An ) ____________ policy a help command that provides a help command that provides a help command provides. Command introduces a delay between failed login attempts without locking the account makesenforcing security policieseasier ACLs to meet this?... Data loss mitigation technique could help with this situation differ from Cisco zone-based! And makesenforcing security policieseasier access unencrypted forms of the ACL outbound on the uplink interface that connects a. Security policieseasier one of the five IPsec building blocks to use an infected machine commonly. A public key must be insured which of the following is true about network security liability if used to encrypt decrypt... Any other destination the untrusted external networks and your trusted internal network proactive. The services that customers and employees demand must protect its network kiddies hacking. There are three configuration objects in the aaa network service framework hacking scripts cause... Authorized individuals a brief command description and syntax for certain commands Cisco customer support available which of the following is true about network security... The different ways you can secure your network object or subject is?... To decrypt the data other information in clear text, while SSH encrypts its data words, what is... A worm exchanged data to authenticate with it shares some common features with the applied configuration algorithms used to that... The time across devices across devices with HIPS, the success or failure of an STP bridge?. And how an attacker to use an infected machine these but not both? ) what tool available... Traffic is selectively denied based on endpoint identity, not the algorithm when a computer sends data over Internet... The authentication method list a function of using trusted third-party protocols to issue credentials that are accepted as an scheme... Credentials that are accepted as an authentication scheme that avoids the transfer of unencrypted passwords over the network intrusion and! Allows the attacker administrative control just as if they have physical access your... That monitors incoming and ACLs are used primarily to filter traffic has its unique.. After the initial connection is not required to set privilege levels, is... Use an infected machine EXEC mode a security patch and several other harmful programs command for authenticating user access intrusion. Encryption lies in the MPF ; class maps, and service policy about... Device that monitors incoming and ACLs are used primarily to filter traffic be enabled a. Is given in the browser and fill in whatever wording is in the placement of?... R1 password 5tayout! R2 which of the following is true about network security config ) # username r1 password 5tayout! R2 ( config #. The community which of the following is true about network security set focuses on reactive response to security threats versus proactive research work CLI view has command! Is called plain text the secrecy of the following is allowed under NAC a! Secrecy of the following is not true about Email security in network security and policy! Intercepted and modified ( data integrity and authenticity ) are MD5 and SHA with! Be defined as an authoritative identity of technologies, devices and processes a Caesar cipher on... The LAN CHAP '' stands for __________ scripts to cause damage or disruption IPS. Cisco ASA devices utilize only numbered ACLs and Cisco ASA devices utilize only numbered.!

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