CCNA Security Final Exam v1.2 (Dj)

8/10/2019 CCNA Security Final Exam v1.2 (Dj)

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CCNA Security Final Exam v1.2

CCNA Security Final Exam v1.2 Questions and Answers CCNAS

1. Which statement is true about the One-Step lockdown feature of the CCP Security Audit wizard?

It sets an access class ACL on VTY lines.It enables TCP intercepts.

It provides an option for configuring SNMPv3 on all routers.

It enables the Secure Copy Protocol (SCP).

It supports AAA configuration.

_______________________________________________________________

2. With the Cisco AnyConnect VPN wizard, which two protocols can be used for tunnel group

configuration? (Choose two.)

MPLS

SSHPPTP

ESP

IPsec_______________________________________________________________

3. What are two disadvantages of using network IPS? (Choose two.)

Network IPS is operating system-dependent and must be customized for each platform.

Network IPS is incapable of examining encrypted traffic.Network IPS is unable to provide a clear indication of the extent to which the network is being attacked.

Network IPS sensors are difficult to deploy when new networks are added.

Network IPS has a difficult time reconstructing fragmented traffic to determine if an attack was

successful.

_______________________________________________________________

4.


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Refer to the exhibit. An administrator is implementing VPN support on an ASA 5505. What type of VPN

support is being implemented?

client-based IPsec VPN using AnyConnect

client-based IPsec VPN using Cisco VPN Client

clientless SSL VPNsite-to-site IPsec VPN

client-based SSL VPN using AnyConnect

clientless IPsec VPN

_______________________________________________________________

5. What are two benefits of an SSL VPN? (Choose two.)

The thin client mode functions without requiring any downloads or software.

It supports all client/server applications.

It is compatible with DMVPNs, Cisco IOS Firewall, IPsec, IPS, Cisco Easy VPN, and NAT.

It has the option of only requiring an SSL-enabled web browser.It supports the same level of cryptographic security as an IPsec VPN.

_______________________________________________________________

6. When configuring router security, which statement describes the most effective way to use ACLs to

control Telnet traffic that is destined to the router itself?

Apply the ACL to the vty lines without the in or out option required when applying ACLs to interfaces.

The ACL is applied to the Telnet port with the ip access-group command.

The ACL must be applied to each vty line individually.

The ACL should be applied to all vty lines in the in direction to prevent an unwanted user from

connecting to an unsecured port._______________________________________________________________
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7.

Refer to the exhibit. A network administrator is configuring the security level for the ASA. Which

statement describes the default result if the administrator tries to assign the Inside interface with the same

security level as the DMZ interface?

The ASA console will display an error message.

The ASA will not allow traffic in either direction between the Inside interface and the DMZ.

The ASA allows traffic from the Inside to the DMZ, but blocks traffic initiated on the DMZ to theInside interface.The ASA allows inbound traffic initiated on the Internet to the DMZ, but not to the Inside interface.

_______________________________________________________________

8. A network technician is configuring SNMPv3 and has set a security level of auth. What is the effect of

this setting?

authenticates a packet by using either the HMAC MD5 or HMAC SHA algorithms and encrypts the

packet with either the DES, 3DES or AES algorithms

authenticates a packet by using the SHA algorithm only

authenticates a packet by using either the HMAC with MD5 method or the SHA method

authenticates a packet by a string match of the username or community string_______________________________________________________________

9. What is an advantage of using SSL VPNs compared to IPsec VPNs on an ASA?

SSL VPNs provide support for more applications.

SSL VPNs do not require any pre-installed client software.SSL VPNs provide superior authentication.

SSL VPNs provide stronger encryption as a remote-access solution.

_______________________________________________________________

10.


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Refer to the exhibit. Which interface configuration completes the classic firewall configuration on the

firewall?

FW(config)# interface g0/1

FW(config-if)# ip inspect OUTBOUND in

FW(config-if)# ip access-group INSIDE out



FW(config-if)# ip access-group INSIDE in



FW(config-if)# ip access-group INSIDE in


FW(config-if)# ip inspect INSIDE in

FW(config-if)# ip access-group OUTBOUND in


FW(config-if)# ip inspect INSIDE in

FW(config-if)# ip access-group OUTBOUND in

_______________________________________________________________

11. What is a type of SSL VPN that provides access to a network without requiring VPN software or a

Java applet on the client?

clientless mode

Cisco VPN client mode

full client modethin client mode

_______________________________________________________________

12. What are two reasons for a company to migrate from a classic firewall to the ZPF model? (Choose

two.)

The classic firewall will perform the same inspection on all traffic that goes through a specific

interface.The classic firewall can only have one policy that affects any given traffic.

The classic firewall security posture is to block unless explicitly allowed.

The classic firewall is limited to two interfaces.

The classic firewall relies heavily on ACLs._______________________________________________________________


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13. What is the main difference between the implementation of IDS and IPS devices?

An IDS uses signature-based technology to detect malicious packets, whereas an IPS uses profile-based

technology.

An IDS would allow malicious traffic to pass before it is addressed, whereas an IPS stops it

immediately.An IDS can negatively impact the packet flow, whereas an IPS can not.

An IDS needs to be deployed together with a firewall device, whereas an IPS can replace a firewall._______________________________________________________________

14. What information must an IPS track in order to detect attacks matching a composite signature?

the state of packets related to the attack

the total number of packets in the attack

the network bandwidth consumed by all packets

the attacking period used by the attacker

_______________________________________________________________

15. What method is used to authenticate SNMPv2 messages between the manager and the agent?

RSA keys

trusted keys

encrypted passwords

community strings_______________________________________________________________

16. Which statement describes the characteristics of packet-filtering and stateful firewalls as they relate to

the OSI model?

A packet-filtering firewall typically can filter up to the transport layer, whereas a stateful firewall can

filter up to the session layer.

Both stateful and packet-filtering firewalls can filter at the application layer.

A packet-filtering firewall uses session layer information to track the state of a connection, whereas a

stateful firewall uses application layer information to track the state of a connection.

A stateful firewall can filter application layer information, whereas a packet-filtering firewall cannot filter

beyond the network layer.

_______________________________________________________________

17. What is a difference between ASA IPv4 ACLs and IOS IPv4 ACLs?

ASA ACLs use the subnet mask in defining a network, whereas IOS ACLs use the wildcard mask.ASA ACLs do not have an implicit deny all at the end, whereas IOS ACLs do.

ASA ACLs use forward and drop ACEs, whereas IOS ACLs use permit and deny ACEs.

Multiple ASA ACLs can be applied on an interface in the ingress direction, whereas only one IOS ACL

can be applied.

ASA ACLs are always named, whereas IOS ACLs can be named or numbered.

_______________________________________________________________

18. What is the best way to prevent a VLAN hopping attack?

Use ISL encapsulation on all trunk links.Disable STP on all nontrunk ports.

Disable trunk negotiation for trunk ports and statically set nontrunk ports as access ports.


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Use VLAN 1 as the native VLAN on trunk ports.

_______________________________________________________________

19. Why have corporations been shifting remote access security policies to include support for ASA SSL

VPNs?

to have stronger encryption options

to support secure access for users on a multitude of devicesto have stronger authentication options

to provide stronger overall security

_______________________________________________________________

20.

Refer to the exhibit. What is the purpose of the object group-based ACL?

It allows users on the 10.5.0.0/24 network access via HTTPS to remote devices on the 10.7.150.0/28,

10.7.151.0/28, 10.7.160.0/28, and 10.7.161.0/28 networks.

It allows devices on the 10.7.150.0/28, 10.7.151.0/28, 10.7.160.0/28, 10.7.161.0/28 networks to receiveTCP-based broadcasts.

It allows any TCP traffic with port 443 from the 10.7.150.0/28, 10.7.151.0/28, 10.7.160.0/28, and

10.7.161.0/28 networks access to the 10.5.0.0/24 network.

It allows devices on the 10.5.0.0/24 network to have telnet and web access to the 10.7.150.0/28,

10.7.151.0/28, 10.7.160.0/28, and 10.7.161.0/28 networks.

_______________________________________________________________

21.
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Refer to the exhibit. Based on the output from the show secure bootset command on router R1, which

three conclusions can be drawn about Cisco IOS Resilience? (Choose three.)

The Cisco IOS image file is hidden and cannot be copied, modified, or deleted.

A copy of the router configuration file has been made.The Cisco IOS image filename will be listed when the show flash command is issued on R1.

A copy of the Cisco IOS image file has been made.

The secure boot-config command was issued on R1.The copy tftp flash command was issued on R1.

_______________________________________________________________

22. How would a network security professional mitigate a DoS attack?

Implement a strong password policy.

Deploy antisniffer software.

Include a firewall and IPS in the network security design.Design the network by using the principle of minimum trust.

_______________________________________________________________

23. Which three statements describe limitations in using privilege levels for assigning command

authorization? (Choose three.)

The root user must be assigned to each privilege level that is defined.

It is required that all 16 privilege levels be defined, whether they are used or not.

Views are required to define the CLI commands that each user can access.

There is no access control to specific interfaces on a router.

Creating a user account that needs access to most but not all commands can be a tedious process.

Commands set on a higher privilege level are not available for lower privilege users._______________________________________________________________

24. Which algorithm is used to automatically generate a shared secret for two systems to use in

establishing an IPsec VPN?

DES

DH3DES

ESP

AH

SSL

_______________________________________________________________

25. What type of security key is generated by the local user software when a user is connecting to a Cisco

ASA through a remote-access SSL VPN?

asymmetric key

digitally signed private key

shared-secret keydigitally signed public key

_______________________________________________________________

26. What is one advantage of using a Cisco ASA for remote networking VPN deployment compared to aCisco ISR?


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support for SSL VPNs

support for more concurrent user sessions

support for IPsec VPNssupport for AAA external authentication

_______________________________________________________________

27. What will be disabled as a result of the no service password-recovery command?

aaa new-model global configuration command

changes to the configuration register

ability to access ROMMONpassword encryption service

_______________________________________________________________

28. In what two phases of the system development life cycle does risk assessment take place? (Choose

two.)

operation and maintenance

dispositionimplementation

initiation

acquisition and development_______________________________________________________________

29. What is one benefit of implementing a secure email service by using the Cisco Email Security

Appliance (ESA)?

ESA provides isolation between processes.

It obtains real-time updates from the Cisco SIO.It uses the network infrastructure to enforce security policy compliance.

It combines advanced threat defense and secure mobility for email.

_______________________________________________________________

30.

Refer to the exhibit. The administrator can ping the S0/0/1 interface of RouterB but is unable to gainTelnet access to the router by using the password cisco123. What is a possible cause of the problem?


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The Telnet connection between RouterA and RouterB is not working correctly.

The enable password and the Telnet password need to be the same.

The password cisco123 is wrong.The administrator does not have enough rights on the PC that is being used.

_______________________________________________________________

31. A network administrator configures the alert generation of an IPS device in such a way that when

multiple attack packets that match the same signature are detected, a single alert for the first packet isgenerated and the remaining duplicate alarms are counted, but not sent, for a specific time period. When

the specified time period is reached, an alert is sent that indicates the number of alarms that occurred

during the time interval. What kind of alert generation pattern is configured?

composite alerts

atomic alerts

summary alertsadvanced alerts

_______________________________________________________________

32. Which STP port type is permitted to forward traffic, but is not the port closest to the root bridge?root port

designated portbackup port

alternate port_______________________________________________________________

33.

Refer to the exhibit. What is the purpose of the ACLs?

to deny inbound IPv6 and SSH traffic unless it originates from within the organization

to allow inbound traffic from only designated sources

to allow SSH connections initiated from the Internet to enter the networkto deny all inbound traffic and log TCP and UDP transmissions

_______________________________________________________________

34.

Refer to the exhibit. An administrator is examining the message in a syslog server. What can be

determined from the message?

This is a notification message for a normal but significant condition.This is an alert message for which immediate action is needed.

This is an error message that indicates the system is unusable.
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This is an error message for which warning conditions exist.

_______________________________________________________________

35. What is the basic method used by 3DES to encrypt plaintext?

The data is divided into three blocks of equal length for encryption.

The data is encrypted using a key length that is three times longer than the key used for DES.

The data is encrypted three times with three different keys.

The data is encrypted, decrypted, and encrypted using three different keys.

36.

Refer to the exhibit. A network administrator configures AAA authentication on R1. The administrator

then tests the configuration by telneting to R1. The ACS servers are configured and running. What will

happen if the authentication fails?

The enable secret password could be used in the next login attempt.The authentication process stops.

The enable secret password and a random username could be used in the next login attempt.The username and password of the local user database could be used in the next login attempt.

_______________________________________________________________

37. Which two security features can cause a switch port to become error-disabled? (Choose two.)

storm control with the trap option

PortFast with BPDU guard enabled

port security with the shutdown violation moderoot guard

protected ports

_______________________________________________________________

38. What are three goals of a port scan attack? (Choose three.)

to identify peripheral configurations

to discover system passwords

to determine potential vulnerabilitiesto disable used ports and services

to identify operating systems

to identify active services_______________________________________________________________

39. Which security policy component would contain procedures for handling an issue where someonefollowed a network administrator into the server room without the administrator noticing and the person

removed some storage drives?


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information preservation policy

security policyoperations and maintenance document

security initiation document

_______________________________________________________________

40. What question is answered by the risk analysis component of security policy development?

What is the cost versus benefit analysis of implementing various security technologies?What are the reliable, well-understood, and recommended security practices that similar organizations

currently employ?

What are the current procedures for incident response, monitoring, maintenance, and auditing of the

system for compliance?

What are the most likely types of threats given the purpose of the organization?

_______________________________________________________________

41. What are two characteristics of an acceptable use policy? (Choose two.)

It should be as explicit as possible to avoid misunderstanding.It should specify who is authorized to access network resources.It should identify how remote users will access the network.

It should identify what network applications and usages are acceptable.It should enforce minimum password requirements for users.

It should be vague to allow maximum user flexibility.

_______________________________________________________________

42.

Refer to the exhibit. Which pair of crypto isakmp key commands would correctly configure PSK on thetwo routers?

R1# crypto isakmp key ciscopass address 209.165.200.226

R2# crypto isakmp key secure address 209.165.200.227



R1# crypto isakmp key ciscopass hostname R1

R2# crypto isakmp key ciscopass hostname R2



_______________________________________________________________


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43. What are two features of Cisco Easy VPN Server? (Choose two.)

It requires Cisco routers to act as remote VPN clients.

It enables complete access to the corporate network over an SSL VPN tunnel.It enables an ASA firewall to act as the VPN head-end device in remote-access VPNs.

It requires remote access to the corporate network via a web browser and SSL.

Cisco Easy VPN Server enables VPN client remote access to a company intranet through creation of

secure IPsec tunnels._______________________________________________________________

44.

Refer to the exhibit. A network administrator is troubleshooting a GRE VPN tunnel between R1 and R2.

Assuming the R2 GRE configuration is correct and based on the running configuration of R1, what must

the administrator do to fix the problem?

Change the tunnel IP address to 209.165.201.1.

Change the tunnel destination to 192.168.5.1.

Change the tunnel IP address to 192.168.3.1.

Change the tunnel source interface to Fa0/0.

Change the tunnel destination to 209.165.200.225._______________________________________________________________

45. Which spanning-tree enhancement prevents the spanning-tree topology from changing by blocking a

port that receives a superior BPDU?

PortFast

BPDU guardroot guard

BDPU filter

_______________________________________________________________

46. In deploying an IPS in a corporate network, system operators first create a profile of normal networkoperation by monitoring network activities in normal network uses. After the profile is incorporated into

the IPS triggering mechanism, alarms will be generated when the IPS detects excessive activity that is

beyond the scope of the profile. Which signature detection mechanism is deployed?


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pattern-based detection

policy-based detection

honey pot-based detection

anomaly-based detection_______________________________________________________________

47. Why does a worm pose a greater threat than a virus poses?

Worms are not detected by antivirus programs.

Worms run within a host program.

Worms are more network-based than viruses are.Worms directly attack the network devices.

_______________________________________________________________

48. Which security feature would be commonly implemented as part of a large enterprise wireless policy

but would not typically be used in a small office/home office network?

not broadcasting the SSID

using WPA2not allowing personal wireless devicesusing an authentication server

_______________________________________________________________

49. Which two commands are needed on every IPv6 ACL to allow IPv6 neighbor discovery? (Choose

two.)

permit ipv6 any any fragments

permit icmp any any nd-nspermit icmp any any echo-reply

permit icmp any any nd-napermit tcp any any ack

permit ipv6 any any routing

_______________________________________________________________

50. A network technician has been asked to design a virtual private network between two branch routers.

Which type of cryptographic key should be used in this scenario?

asymmetric keyhash key

symmetric keydigital signature

_______________________________________________________________

51. A company is designing its strategy of deploying Cisco Secure ACS to manage user access. The

company is currently using a Windows server for the internal authentication service. The network

administrator needs to configure the ACS to contact the Windows server when it cannot find the user in

its local database. Which option of external user database setup should be configured on ACS?

by specific user assignment

by unknown user policy

by administrator privilegeby user priority

_______________________________________________________________


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52.

Refer to the exhibit. What is the purpose of the highlighted inspect line?

It is the action to take on the traffic from the 10.10.10.0/24 network.

It specifies the named class-map to apply to the traffic_going policy.

It dictates to the firewall to track all outgoing sessions no matter the source in order to determine

whether a return packet is allowed.It is the command used to apply a rate limit to a specific class of traffic


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Documents

CCNA Security Final Exam v1.2 (Dj)