Volume 2 - Chapter 13: Device Management Protocols

Question 1

What command is enabled by default on Cisco routers & switches that allows syslog messages to be displayed at the console automatically?

Answer 1

logging console

Question 2

What command(s) are required to enable log messages to SSH/Telnet sessions?

Answer 2

logging monitor
terminal monitor

Question 3

Describe the difference between the following commands:
* logging monitor
* terminal monitor

Answer 3

Logging Monitor: used to enable sending logs to all connected users

Terminal Monitor: used to display the logs at the terminal

Question 4

What command enables log messages to be stored in RAM?

Answer 4

logging buffered

Question 5

What command can be used to send syslogs to an external syslog server?

Answer 5

logging host address/hostname

Question 6

What command can be used to disable the use of timestamps for log messages?

Answer 6

In global configuration mode:

no service timestamps

Question 7

What command can be used to enable the use of sequence numbers for log messages?

Answer 7

service sequence-numbers

Question 8

Describe the 8 log message serverity levels and their numbering

Answer 8

0 - Emergency
1 - Alert
2 - Critical
3 - Error
4 - Warning
5 - Notification
6 - Informational
7 - Debug

Question 9

What command would be used to enable logs to the console with a severity of warning?

Answer 9

logging console 4

or

logging console warning

Question 10

True or False:

“Debug” commands remain enabled until the user issues a “no debug” command, even after the user logs out of the console session.

Answer 10

True

Question 11

What command would be used to set the timezone for a router with the following?:
* A name of MNT
* A UTC offset of 7

Answer 11

clock timezone MNT -7

Question 12

What command is used to enable daylight savings time as recurring with a name of “MyClock”?

Answer 12

clock summer-time MyClock recurring

Question 13

What command can be used to manually set the time as the following?:
* February 14th, 2027
* 7:24 PM

Answer 13

clock set 19:24:00 14 February 2027

Question 14

Describe the purpose of the “ntp master” command.

Answer 14

ntp master

Sets the device to only act as an NTP server. The device will not act as a NTP client without additional commands

Question 15

Describe the purpose of the “ntp server 1.2.3.4” command.

Answer 15

ntp server 1.2.3.4

Sets the device to act as both an NTP server and client. Once the device has synced to the 1.2.3.4 NTP server, it will act as an NTP server.

Question 16

What comand can be used to list the details regarding the current NTP server that a router is synchronized with?

Answer 16

show ntp status

Question 17

What command can be used to list all NTP servers that the router will attempt to associate with?

Answer 17

show ntp associations

Question 18

What command can be used to set the current router’s stratum level while it acts as an NTP server?

Answer 18

ntp master stratumnumber

For example: ntp master 5

Question 19

Describe the difference between the following commands:
* show cdp neighbors detail
* show cdp entry entryname

Answer 19

The command “show cdp entry entryname shows the same level of detail as the detail command, but only for the single specified neighbor

Question 20

What are the 3 available commands that can be used to listing CDP neighbor information?

Answer 20

show cdp neighbor
show cdp neighbor detail
show cdp entry entryname

Question 21

What commands can be used to disable the use of CDP?

Answer 21

At a global level: no cdp run

At an interface level: no cdp enable

Question 22

Describe the output of the following command:

show cdp

Answer 22

Lists the current status of CDP and the frequency of sending CDP packets

Question 23

Describe the output of the following command:

show cdp interface interfacename

Answer 23

Lists the status of CDP for a specific interface and it holdtime timers

Question 24

show cdp traffic

Answer 24

Lists global CDP statistics for sent and received messages

Question 25

What are the default CDP send and hold timers?

Answer 25

Send: 60 seconds
Holdtime: 180 seconds

Question 26

What commands cab be use to alter the default CDP send timer and holdtimer?

Answer 26

cdp timer seconds
cdp holdtime seconds

Question 27

What commands cab be use to alter the default LLDP send timer and holdtimer?

Answer 27

lldp timer seconds
lldp holdtime seconds

Question 28

What command can be used to for a device to wait x seconds before sending LLDP packets when an interface comes up?

Answer 28

lldp reinit seconds

Question 29

What IEEE standard defines LLDP?

Answer 29

802.1AB

Question 30

Describe how CDP and LLDP differ when listing a neighbor’s capabilities.

Answer 30

CDP shows all capabilities supported by the neighboring device, while LLDP only lists the features currently enabled.

Question 31

What is the command to view a specific LLDP neighbor with a hostname of Router2?

Answer 31

show lldp entry Router2

Question 32

True or False:

Only LLDP is enabled on Cisco devices by default.

Answer 32

False; LLDP needs to be manually enabled globaly or on an interface level.

CDP is enabled globaly by default.

Question 33

What is the global command to enable the use of LLDP?

Answer 33

lldp run

Question 34

What is the global command to enable/disable the use of LLDP on a specific interface?

Answer 34

lldp transmit
no lldp transmit

lldp receive
no lldp receive

Question 35

What are the default timing settings for LLDP on Cisco devices?

Answer 35

30 second send, 120 second holdtime

Question 36

What are the commands to set the LLDP send and holdtime timers?

Answer 36

lldp timer seconds
lldp holdtime seconds

Question 37

What are the 3 components of a TLV?

Answer 37

Type
Length
Value

Question 38

LLDP MED Stands for?

Answer 38

Media Endpoint Discovery