Deck 11: Troubleshooting

Question 1

What is the difference in a serial interface with a status of down and a status of administratively down?
Status of down means the interface is shut down.
Administratively down means the link is lost and probably disconnected.

Answer 1

False

Question 2

Data traffic plots are not necessary for which of the following?

A)Hourly plots
B)Daily plots
C)Weekly plots
D)Monthly plots
E)None of these answers are correct.

Answer 2

E

Question 3

Tier 1 support in an organization's trouble tracking system _____________.

A) Gathers details such as user information and problem symptoms
B) Consults documentation for known issues
C) Checks for recent network changes
D) Does all of the above

Answer 3

D

Question 4

After a working solution is found for a networking problem,what should you do?

A) Immediately implement the solution.
B) Wait to see if other users develop the same problem.
C) Develop a plan of action for implementation and then resolve the problem.
D) Wait for the user to follow up on the problem and then notify the user of your solution.

Question 5

The purpose of an ARP reply is to acquire their IP address.

Question 6

The last step in network problem resolution is _______.

A) Documenting findings, actions, and results
B) Calling tier 1 support to close the problem ticket
C) Checking with the user to make sure the problem has not occurred again
D) Duplicating the problem resolution on an identical machine

Question 7

The status of protocol up indicates which of the following? (Select all that apply.)

A)Keepalive packets are being exchanged.
B)The Ethernet interface is connected to another networking device.
C)The routing protocol has been configured.
D)The router is ready to be configured.

Question 8

The show ip interface brief command shows Yes on the OK? column.This indicates that Keepalive packets are being exchanged.

Question 9

The purpose of an ARP request is to determine the MAC address for a specified IP address.

Question 10

After implementing a solution,a problem is considered resolved after which of the following has occurred:

A) A verification of full system functionality has been confirmed.
B) The user informs tier 1 support that the problem no longer exists.
C) The user has not contacted tier 1 support after 48 hours.
D) The technician has tested the user's system.

Question 11

ARP stands for Address Resolution Protocol.

Question 12

You want to obtain very detailed information about the health and forwarding statistics of your Cisco router.What protocol can help?

A)IP SLA
B)NTP
C)DNS
D)SNMP
E)SMTP

Question 13

A segment is used to do which of the following? (Select all that apply.)

A)Break up broadcast domains
B)Isolate data traffic
C)Connect the hub to the router
D)Separate the MAC address

Question 14

What command can you use on a Cisco router to get information about how long the router has been "alive" since the last reboot?

A)show version
B)show uptime
C)show status
D)show health

Question 15

Which is not a common issue when troubleshooting wireless networks?

A)Load issues
B)Interference issues
C)Security issues
D)Protocol conversion issues

Question 16

The purpose of the Keepalive packet is to indicate that the Ethernet interface is connected to another networking device.

Question 17

The divide-and-conquer troubleshooting approach involves which of the following?

A) Starting at the application layer and working down the OSI layers
B) Starting at a midpoint in the OSI model and going either up or down the OSI layers, depending on observed results
C) Comparing the working and non-working configurations
D) Starting at the physical layer and working up the OSI layers

Question 18

What command can you use on a Cisco router in order to obtain the status and IP address assigned to each interface?

A)show interface brief
B)show interface status ip
C)show ip interface brief
D)show interface ip brief

Question 19

The network administrator notices that the hourly plot of a router's data traffic varies from hour to hour.What does this information tell the network administrator?

A)This is most likely normal operation.
B)The network administrator needs to compare this hourly plot with expected hourly plots of the router's data traffic.
C)The network administrator should run diagnostics on the router, and the most likely problem is someone is trying to break into the system.
D)The router needs to be rebooted.

Question 20

When viewing the interface status,the Method field indicates which of the following?

A)The interface was brought up manually.
B)The interface was brought up using tftp.
C)How the interface was brought up.
D)The interface is exchanging Keepalive packets.
E)None of these answers are correct.

Question 21

Which of the following is a clear sign that there are issues with the DHCP server?

A) Manually assigned IP addresses do not work.
B) The device's IP address defaults to an address starting with 254.254.
C) The device's IP address defaults to an address starting with 169.
D) The gateway is unreachable.

Question 22

On Windows machines,what command do you use to verify network settings?

A) checknetconfig
B) getipconfig
C) ipconfig
D) None of the above

Question 23

Problems with blocked TCP/UDP ports typically result in which of the following?

A) No applications work at all.
B) Only email connections work.
C) Some applications work fine and others do not connect.
D) All of the above are correct.

Question 24

What is the primary role of a DNS server?

A) Name resolution on the network
B) Network traffic management
C) Determining subnet addresses
D) Database network services

Question 25

Correct gateway settings can be verified by using ________.

A) ping
B) ipconfig
C) Both ping and ipconfig
D) None of the above

Question 26

When verifying a device's network configuration,which of the following items should be checked?

A) The device's IP address
B) The subnet mask
C) The IP address of the gateway
D) All of the above

Question 27

IP address conflicts are most common with which network configuration?

A) Manually assigned IP addresses
B) DHCP IP address assignment
C) Class B subnetting
D) Class C subnetting

Question 28

When a user has connectivity issues yet can reach some destinations by using IP addresses,the problem is most likely due to which of the following?

A) User error when entering website names
B) A slow network connection
C) A defective network cable
D) A problem reaching the DNS server