ccna 2 chapter 8 (version 4.1)

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1 Which benefit does SSH offer over Telnet when remotely managing a router? encryption TCP usage authorization connection using six VTY lines 2 What are two potential problems with using tape media to back up server data? (Choose two.) Tape is not a cost-effective means of backing up data. Data tapes are difficult to store offsite. Data tapes are prone to failure and must be replaced often. Tape drives require regular cleaning to maintain reliability. Backup logs are not available with tape backup solutions. 3 Refer to the exhibit. While the user on router A is connected to router B through telnet, the CTRL-SHIFT-6 x keystroke is entered. What effect does this have? It logs the user out of router A. It suspends the connection to router B. It closes the connection to router B. It logs the user out of both router A and router B. 4 What network layer security protocol can secure any application layer protocol used for communication? HTTPS IMAP FTPS IPSEC TLS 5 While downloading an IOS image from a TFTP server, an administrator sees long strings of exclamation marks (!) output to the console. What does this mean? The transfer is working. The TFTP server is not responding. The IOS file is corrupt and is failing the checksum verification. There is not enough space in flash to hold the image.

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Page 1: Ccna 2 Chapter 8 (Version 4.1)

1 Which benefit does SSH offer over Telnet when remotely managing a router?

encryption

TCP usage

authorization

connection using six VTY lines

2 What are two potential problems with using tape media to back up server data? (Choose two.)

Tape is not a cost-effective means of backing up data.

Data tapes are difficult to store offsite.

Data tapes are prone to failure and must be replaced often.

Tape drives require regular cleaning to maintain reliability.

Backup logs are not available with tape backup solutions.

3

Refer to the exhibit. While the user on router A is connected to router B through telnet, the CTRL-SHIFT-6 x keystroke is entered. What effect does this have?

It logs the user out of router A.

It suspends the connection to router B.

It closes the connection to router B.

It logs the user out of both router A and router B.

4 What network layer security protocol can secure any application layer protocol used for communication?

HTTPS

IMAP

FTPS

IPSEC

TLS

5 While downloading an IOS image from a TFTP server, an administrator sees long strings of exclamation marks (!) output to the console. What does this mean?

The transfer is working.

The TFTP server is not responding.

The IOS file is corrupt and is failing the checksum verification.

There is not enough space in flash to hold the image.

Page 2: Ccna 2 Chapter 8 (Version 4.1)

6 What is the advantage of using WPA to secure a wireless network?

It uses a 128-bit pre-shared hexadecimal key to prevent unauthorized wireless access.

It uses an advanced encryption key that is never transmitted between host and access point.

It is supported on older wireless hardware, thus providing maximum compatibility with enterprise equipment.

It requires the MAC address of a network device that is requesting wireless access to be on a list of approved MAC addresses.

7 Before a technician upgrades a server, it is necessary to back up all data. Which type of backup is necessary to ensure that all data is backed up?

daily

differential

full

incremental

partial

8 Which three items are normally included when a log message is generated by a syslog client and forwarded to a syslog server? (Choose three.)

date and time of message

ID of sending device

length of message

message ID

checksum field

community ID

9 Which two characteristics of network traffic are being monitored if a network technician configures the company firewall to operate as a packet filter? (Choose two.)

ports

physical addresses

packet size

frame sequence number

protocols

10 What two measures help to verify that server backups have been successfully completed? (Choose two.)

reviewing backup logs

performing a trial restore

performing full backups only

Page 3: Ccna 2 Chapter 8 (Version 4.1)

replacing tape backup with hard disk-based backup

using an autoloader when backups require more than one tape

11 Which three applications can be used for in-band management? (Choose three.)

FTP

HTTP

SNMP

Telnet

TFTP

DHCP

12 Which three protocols describe methods that can be used to secure user data for transmission across the internet? (Choose three.)

SMTP

IPSEC

SSL

HTTPS

FTP

TFTP

13 A hacker has gained access to sensitive network files. In analyzing the attack, it is found that the hacker gained access over a wireless segment of the network. It is further discovered that the only security measure in place on the wireless network is MAC Address Filtering. How is it likely that the hacker gained access to the network?

The hacker used a software tool to crack the shared hexadecimal wireless key.

The hacker obtained the MAC address of a permitted host, and cloned it on his wireless laptop NIC.

The attacker mounted a denial of service attack to overwhelm the firewall before penetrating the wireless LAN.

The hacker gained wireless access to the MAC address database and added his own MAC address to the list of permitted addresses.

14 When is the use of out-of-band network management necessary?

when a server needs to be monitored across the network

when the management interface of a device is not reachable across the network

when enhanced monitoring features are required to gain an overall view of the entire network

when it is desirable to use the information that is provided by SNMP

15 What is the term used to describe the area of a network which stores servers that are accessible to any users from the Internet?

"clean" LAN

Page 4: Ccna 2 Chapter 8 (Version 4.1)

intranet

DMZ

extranet

16 A company wants to configure a firewall to monitor all channels of communication and allow only traffic that is part of a known connection. Which firewall configuration should be deployed?

packet filtering

proxy

stateful packet inspection

stateless packet inspection

17 Which means of communication does an SNMP network agent use to provide a network management station with important but unsolicited information?

query

broadcast

ICMP ping

trap

poll

18 What AAA component assigns varying levels of rights to users of network resources?

auditing

accounting

authorization

access control

authentication

acknowledgement

19 A network administrator is assigning network permissions to new groups of users and employing the principle of least privilege. Which two actions should the administrator take? (Choose two.)

Provide users with only the access to resources required to do their jobs.

Provide the minimum level of permissions required for users to do their jobs.

Remove all permissions from the users and grant permissions as they are requested.

Allow users to decide how much permission they need to accomplish their job tasks.

Provide full access to the users and gradually remove privileges over time.

20 Which AAA service provides detailed reporting and monitoring of network user behavior, and also keeps a record of every access connection and device configuration change across the network?

Page 5: Ccna 2 Chapter 8 (Version 4.1)

authentication

accreditation

accounting

authorization

21 What does the command copy flash tftp accomplish?

It copies the IOS in flash to a TFTP server.

It copies the startup-configuration file in flash to a TFTP server.

It copies the running-configuration file in flash to a TFTP server.

It copies the configuration register settings in flash to a TFTP server.