Chapter 10 Device Discovery, Management, Maintenance Flashcards
A ping fails when performed from router R1 to directly connected router R2. The network administrator then proceeds to issue the show cdp neighbors command. Why would the network administrator issue this command if the ping failed between the two routers?
The network administrator suspects a virus because the ping command did not work. The network administrator wants to verify Layer 2 connectivity. The network administrator wants to verify the IP address configured on router R2. The network administrator wants to determine if connectivity can be established from a non-directly connected network.
The network administrator wants to verify Layer 2 connectivity.
Which statement is true about CDP on a Cisco device?
The show cdp neighbor detail command will reveal the IP address of a neighbor only if there is Layer 3 connectivity. To disable CDP globally, the no cdp enable command in interface configuration mode must be used. CDP can be disabled globally or on a specific interface. Because it runs at the data link layer, the CDP protocol can only be implemented in switches.
CDP can be disabled globally or on a specific interface.
Why would a network administrator issue the show cdp neigbors command on a router?
to display device ID and other information about directly connected Cisco devices to display router ID and other information about OSPF neighbors to display line status and other information about directly connected Cisco devices to display routing table and other information about directly connected Cisco devices
to display device ID and other information about directly connected Cisco devices
Refer to the exhibit. Routers R1 and R2 are connected via a serial link. One router is configured as the NTP master, and the other is an NTP client. Which two pieces of information can be obtained from the partial output of the show ntp associations detail command on R2? (Choose two.)
Both routers are configured to use NTPv2. Router R1 is the master, and R2 is the client. Router R2 is the master, and R1 is the client. The IP address of R1 is 192.168.1.2. The IP address of R2 is 192.168.1.2.
Router R1 is the master, and R2 is the client.
The IP address of R1 is 192.168.1.2.
Which two statements are true about NTP servers in an enterprise network? (Choose two.)
There can only be one NTP server on an enterprise network. All NTP servers synchronize directly to a stratum 1 time source. NTP servers at stratum 1 are directly connected to an authoritative time source. NTP servers ensure an accurate time stamp on logging and debugging information. NTP servers control the mean time between failures (MTBF) for key network devices.
NTP servers at stratum 1 are directly connected to an authoritative time source.
NTP servers ensure an accurate time stamp on logging and debugging information.
The command ntp server 10.1.1.1 is issued on a router. What impact does this command have?
determines which server to send system log files to identifies the server on which to store backup configurations ensures that all logging will have a time stamp associated with it synchronizes the system clock with the time source with IP address 10.1.1.1
synchronizes the system clock with the time source with IP address 10.1.1.1
Refer to the exhibit. Which two conclusions can be drawn from the syslog message that was generated by the router? (Choose two.)
This message resulted from an unusual error requiring reconfiguration of the interface. This message indicates that the interface should be replaced. This message is a level 5 notification message. This message indicates that service timestamps have been configured. This message indicates that the interface changed state five times.
This message is a level 5 notification message.
This message indicates that service timestamps have been configured.
Which protocol or service allows network administrators to receive system messages that are provided by network devices?
syslog NTP SNMP NetFlow
syslog
Which syslog message type is accessible only to an administrator and only via the Cisco CLI?
errors debugging emergency alerts
debugging
Refer to the exhibit. From what location have the syslog messages been retrieved?
syslog server syslog client router RAM router NVRAM
router ram
Refer to the exhibit. What does the number 17:46:26.143 represent?
the time passed since the syslog server has been started the time when the syslog message was issued the time passed since the interfaces have been up the time on the router when the show logging command was issued
the time when the syslog message was issued
What is used as the default event logging destination for Cisco routers and switches?
terminal line syslog server console line workstation
console line
A network administrator has issued the logging trap 4 global configuration mode command. What is the result of this command?
After four events, the syslog client will send an event message to the syslog server. The syslog client will send to the syslog server any event message that has a severity level of 4 and higher. The syslog client will send to the syslog server any event message that has a severity level of 4 and lower. The syslog client will send to the syslog server event messages with an identification trap level of only 4.
The syslog client will send to the syslog server any event message that has a severity level of 4 and lower.
What is the major release number in the IOS image name c1900-universalk9-mz.SPA.152-3.T.bin?
2
3
15
52
190
15
What statement describes a Cisco IOS image with the “universalk9_npe” designation for Cisco ISR G2 routers?
It is an IOS version that can only be used in the United States of America. It is an IOS version that provides only the IPBase feature set. It is an IOS version that offers all of the Cisco IOS Software feature sets. It is an IOS version that, at the request of some countries, removes any strong cryptographic functionality.
It is an IOS version that, at the request of some countries, removes any strong cryptographic functionality.
What code in the Cisco IOS 15 image filename c1900-universalk9-mz.SPA.153-3.M.bin indicates that the file is digitally signed by Cisco?
SPA universalk9 M mz
SPA
Which two conditions should the network administrator verify before attempting to upgrade a Cisco IOS image using a TFTP server? (Choose two.)
Verify the name of the TFTP server using the show hosts command. Verify that the TFTP server is running using the tftpdnld command. Verify that the checksum for the image is valid using the show version command. Verify connectivity between the router and TFTP server using the ping command. Verify that there is enough flash memory for the new Cisco IOS image using the show flash command.
Verify connectivity between the router and TFTP server using the ping command.
Verify that there is enough flash memory for the new Cisco IOS image using the show flash command.
A network administrator configures a router with the command sequence:
R1(config)# boot system tftp://c1900-universalk9-mz.SPA.152-4.M3.bin
R1(config)# boot system rom
What is the effect of the command sequence?
On next reboot, the router will load the IOS image from ROM. The router will copy the IOS image from the TFTP server and then reboot the system. The router will load IOS from the TFTP server. If the image fails to load, it will load the IOS image from ROM. The router will search and load a valid IOS image in the sequence of flash, TFTP, and ROM.
The router will load IOS from the TFTP server. If the image fails to load, it will load the IOS image from ROM.
A network engineer is upgrading the Cisco IOS image on a 2900 series ISR. What command could the engineer use to verify the total amount of flash memory as well as how much flash memory is currently available?
show flash0: show version show interfaces show startup-config
show flash0:
Beginning with the Cisco IOS Software Release 15.0, which license is a prerequisite for installing additional technology pack licenses?
IPBase DATA UC SEC
IPBase
Which three software packages are available for Cisco IOS Release 15.0?
DATA
IPVoice
Security
Enterprise Services
Unified Communications
Advanced IP Services
DATA
Security
Unified Communications
When a customer purchases a Cisco IOS 15.0 software package, what serves as the receipt for that customer and is used to obtain the license as well?
Software Claim Certificate End User License Agreement Unique Device Identifier Product Activation Key
Product Activation Key
In addition to IPBase, what are the three technology packs that are shipped within the universal Cisco IOS Software Release 15 image? (Choose three.)
Advanced IP Services
Advanced Enterprise Services
DATA
Security
SP Services
Unified Communications
DATA
Security
Unified Communications
Which command would a network engineer use to find the unique device identifier of a Cisco router?
show version show license udi show running-configuration license install stored-location-url
show license udi
Which command is used to configure a one-time acceptance of the EULA for all Cisco IOS software packages and features?
license save show license license boot module module-name license accept end user agreement
license accept end user agreement
MATCH: mz 15 c1900 bin universalk9 1 4 M4
specifying the feature set minor release number where the image runs and if the file is compressed platform on which the image runs authentication type maintanence release and rebuild number new feature release number file extension major release number
specifying the feature set –> universalk 9
minor release number –> 1
where the image runs and if the file is compressed –> mz
platform on which the image runs –> c1900
maintanence release and rebuild number –> M4
new feature release number –> 4
file extension –> bin
major release number –> 15
What are the most common syslog messages?
Error messages about hardware or software malfunctions
Link up and link down messages
Output messages that are generated from debug output
Those that occur when a packet matches a parameter condition in an access control list
Link up and link down messages
In the IOS image named c1900-universalk9-mz.SPA.152-3.T.bin, which part identifies the major release number?
1900 15 52 2 3 Console
15
Which destination do Cisco routers and switches use by default when sending syslog messages for all severity levels?
RAM
NVRAM
Nearest syslog server
Console
Console
An administrator issues the command confreg 0x2142 at the rommon 1> prompt. What is the effect when this router is rebooted?
Contents in NVRAM will be erased.
Contents in NVRAM will be ignored.
Contents in RAM will be erased.
Contents in RAM will be ignored.
Contents in NVRAM will be ignored.
When logging is used, which severity level indicates that a device is unusable?
Level 0—Emergency
Level 1—Alert
Level 2—Critical
Level 3—Error
Level 0—Emergency
How long is the evaluation license period for Cisco IOS Release 15.0 software packages?
10 days 15 days 30 days 60 days 120 days
60 days
What is the configuration command to globally enable LLDP on a Cisco Catalyst switch?
enable lldp
feature lldp
lldp enable
lldp run
lldp run
What is a difference between CDP and LLDP?
CDP can gather information from routers, switches, and wireless APs, whereas LLDP can only gather information from routers and switches.
CDP can obtain both Layer 2 and Layer 3 information, whereas LLDP can only obtain Layer 2 information.
CDP is a proprietary protocol, whereas LLDP is a vendor-neutral protocol.
CDP is enabled on an interface using two commands, whereas LLDP requires only one command.
CDP is a proprietary protocol, whereas LLDP is a vendor-neutral protocol.
A network administrator wants to configure a router so that only a specific interface will send and receive CDP information. Which two configuration steps accomplish this? (Choose two.)
R1(config)# no cdp enable R1(config)# no cdp run R1(config-if)# cdp enable R1(config-if)# cdp run R1(config-if)# cdp receive R1(config-if)# cdp transmit
R1(config)# no cdp run
R1(config-if)# cdp enable
Which protocol or service allows network administrators to receive system messages that are provided by network devices?
NTP
NetFlow
SNMP
Syslog
Syslog
What is used as the default event logging destination for Cisco routers and switches? terminal line workstation syslog server console line
console line
What code in the Cisco IOS 15 image filename c1900-universalk9-mz.SPA.153-3.M.bin indicates that the file is digitally signed by Cisco? mz SPA universalk9 M
SPA
Which command would a network engineer use to find the unique device identifier of a Cisco router? show running-configuration license install stored-locabon-uri show license udi show version
show license udi
Which syslog message type is accessible only to an administrator and only via the Cisco CLI? errors alerts debugging emergency
debugging
Which two statements are true about NTP servers in an enterprise network? (Choose two.)
NTP servers ensure an accurate time stamp on logging and debugging information
NTP servers control the mean urne between failures (MTBF) for key network devices
NTP servers at stratum 1 are directly connected to an authoritative time source
All NTP servers synchronize directly to a stratum 1 time source
There can only be one NTP server on an enterprise network
NTP servers ensure an accurate time stamp on logging and debugging information
NTP servers at stratum 1 are directly connected to an authoritative time source
Which syslog message type is accessible only to an administrator and only via the Cisco CLI?
Debugging
A network administrator has issued the “logging trap 4” global configuration mode command. What is the result of this command?
the syslog client sends to the syslog server any event message that has a severity level of 4 and lower
The command ntp server 10.1.1.1 is issued on a router. What impact does this command have?
synchronizes the clock of the router with the timeserver at IP address 10.1.1.1
An administrator issues the command “confreg 0x2142” at the rommon 1> prompt. What is the effect when this router is rebooted?
contents in NVRAM will be ignored
In the IOS image named c1900-univeralk9-mz.SPA.152-3.T.bin, which part identifies the major release number?
15
Which number represents the most severe level of syslog logging?
0* 1 6 7
0*
An administrator wants to send log messages for all severity levels from a router to its console. Which procedure should the administrator follow to accomplish this?
The administrator needs to do nothing, because Cisco routers send log messages for all severity levels to the console by default.
Which technology allows syslog messages to be filtered to different devices based on event importance?
syslog security levels
Which statement describes a syslog server characteristic?
One advantage of viewing syslog messages on a syslog server is the ability to perform detailed searches through the data.
What does CDP stand for ?
Cisco Discovery Protocol
What does LLDP stand for ?
Link Local Discovery Protocol
Which layer do CDP and LLDP work ?
Data Link Layer
L2
How does CDP work ?
- one direction
- received and processed by only directly connected neighbors
Did CDP enable by default ?
Yes, CDP enabled by default.
What is CDP interval ?
60 s.
How does LLDP work ?
- advertised by grouping attributes into Type-Length-Value (TLV) structures
- 1 TLV for each information
- LLDP advertisement is a chain of various TLVs
An administrator issued the following commands on router R1:
R1(config)# logging 192.168.10.2
R1(config)# logging trap 5
What conclusion can be drawn from this configuration?
The only messages that appear on the syslog server are those with severity level of 4 or lower. Messages with severity level of 6 or higher appear only on the router console output. The only messages that appear on the syslog server are those with severity level of 5. Messages with severity level of 5 or higher appear on the router console output and are sent to the syslog server.
Messages with severity level of 6 or higher appear only on the router console output.
Which technology via the syslog protocol enhances real-time debugging by displaying the date and time associated with each monitored event?
syslog facilities syslog severity levels syslog service timestamps syslog service identifiers
syslog service timestamps
Which Cisco IOS 15 technology package would be needed to implement voice over IP?
data9 ipbasek9 securityk9 uck9
uck9
What is the factory default setting for the configuration register on Cisco routers?
0x2142 0x2102 0x4102 0x4124
0x2102
The command ntp server 10.1.1.1 is issued on a router. What impact does this command have?
synchronizes the clock of the device to the timeserver that is located at IP address 10.1.1.1
ensures that all logging will have a time stamp associated with it
identifies the server on which to store backup configurations
determines which server to send system log files to
synchronizes the clock of the device to the timeserver that is located at IP address 10.1.1.1
Which protocol or service can be configured to send unsolicited messages to alert the network administrator about a network event such as an extremely high CPU utilization on a router?
syslog
NTP
NetFlow
SNMP
SNMP
What is the most common purpose of implementing NetFlow in a networked environment?
to support accounting and monitoring with consumer applications
to monitor live data usage and to control traffic flow with set messages
to actively capture traffic from networked devices
to passively capture changing events that occur in the network and to perform after-the-fact-analysis
to support accounting and monitoring with consumer applications
How does NetFlow function on a Cisco router or multilayer switch?
On 2960 switches, Netlow allows for data export.
One user connection to an application exists as two NetFlow flows.
Netflow captures and analyzes traffic.
NetFlow does not consume any additional memory.
One user connection to an application exists as two NetFlow flows.
What information can be granted about a neighbor device from the “show cdp neighbors” command?
The IP address of the neighbor
Which option correctly enables LLDP on an interface?
R1 (config-if) lldp receive
R1 (config-if) lldp Transmit
A command issued “logging trap 4 global configuration mode” command. What is the result of this command?
The syslog client sends to the syslog server any event message that has a severity level of 4 or lower
The command “ntp server 10.1.1.1” is issued on router R1. What impact does this command have?
Synchronizes the clock of R1 with the timeserver at IP address 10.1.1.1
Which 2 statements are true about NTP servers in an enterprise network? Choose 2
NTP servers at stratum 1 are directly connected to an authoritative time source.
NTP servers ensure an accurate time stamp on logging and debugging information.
What can a network administrator do to access a router if the password has been lost?
From ROMMON mode, configure the router to ignore the startup configuration when the router initializes.
An Administrator issues the command “confreg 0x2142 at the rommon 1>” prompt. What is the effect when this router is rebooted?
Contents in NVRAM will be ignored
A Network technician is attempting a password recovery on a router. From ROMMON mode, which command must be entered to bypass the startup configuration file?
rommon > confreg 0x2142
What must an administrator have in order to reset a lost password on a router?
Physical access to the router
What statement describes a Cisco IOS image with the “universalk9_npe” designation for Cisco ISR G2 routers.
It is an IOS version that, at the request of some countries, removes any strong cryptographic functionality
A network engineer is upgrading the Cico IOS image on a 2900 series ISR. What command could the engineer use to verify the total amount of flash memory as well as how much flash memory is currently available?
show flash0:
Which two conditions should the network administrator verify before attempting to upgrade a Cisco IOS image using a TFTP server? Choose 2
Verify connectivity between the router and TFTP server using the ping command.
Verify that there is enough flash memory for the new CIsco IOS image using “show flash” command.
Beginning with the Cisco IOS Software Release 15.0, which license is a prerequisite for installing additional technology pack licenses?
IP Base
A network administrator is troubleshooting problems with a router that is running IOS 15. Which command displays the features activated for the licenses that are installed on the router?
Show License
Which command is used to configure a one time acceptance of the EULA for all Cisco IOS software packages and features?
license accept end user aggreement
