Net 210 Chapter 12
Terms in this set (24)
If an HSRP group has a router in an active state and a router in a standby state what is the result when additional routers are added to the group?
They are additional HSRP member routers
When configuring an HSRP group which router should be configured with the virtual IP address ?
Any one of the routers in the HSRP group
Which of the following gateway redundancy protocols are Cisco proprietary?
What happens after HSRP holdtime expires on the hello message?
Additional HSRP member routers transition from the listen state
The HSRP standby router becomes the active router
Which of the following best describes the various VRRP group roles?
A backup router will become the master router should the existing master router fail
A master router forwards traffic destined to the virtual IP address
Which of the following does not accurately describe HSRP states?
Learn is when the router has received the virtual IP address from a hello message sent by the active router
A host's ARP cache has a MAC address of 0000.0C07.AC05 entry. What does this mean?
The HSRP group managing traffic sent from the host is group 5
The host is configured with a HSRP virtual IP address as the default gateway
Which of the following is not true concerning VRRP?
Backup routers send advertisements to inform other routers in the VRRP group of its status.
Which of the following is true concerning GLBP?
Load balancing is achieved by the AVG replying to the host's ARP requests with different virtual MAC addresses A GLBP group can have up to four member routers acting as default IP gateways
In which of the following scenarios would a router send a resign message?
If a preempted active router fails the standby router becomes the active router. If the preempted active router regains service, it will send a coup message. The current active router sends the resign message after receiving the coup message
What effect does the standby 2 track serial 0/0/25 interface configuration command have?
Decrements of the HSRP group priority by 25 if the interface goes down
The HSRP standby router will become the active router if both routers have default configurations
Which fields in the header of IP packets are examined by NetFlow to determine whether or not a given packet is part of a flow?
Layer 3 protocol type
Currently your NetFlow router is configured to redirect records to a NetFlow Collector with an IP address of 172.17.8.25 on UDP port 2055. By default the NetFlow uses the IP address of the interface that packets are sent from the as the source IP address for records. However for security reasons you want to obscure the source address of the NetFlow router by specifying that all NetFlow records originate from the loopback interface of the router. Which command should you use?
ip flow-export source loopback 0
You need to determine whether NetFlow is monitoring inbound and/or outbound traffic on all interfaces in a router. Which command should you use to do this?
show ip flow interface
Consider the output from the show ip cache flow command in the exhibit. Which statements are true regarding the flow represented in the statistics?
255 packets were monitored
Most of the packets monitored were 1536 bytes in size
You check the time on a router that it is behind by several minutes. To fix the issue you decide configure NTP on the router to get time from the stratum 2 time provider on the internet with a hostname of 0.pool.ntp.org. Which command should you use?
ntp server 0.pool.ntp.org
Currently all of the routers in your network are configured to use NTP to synchronize time with a public Stratum 2 time provider on the internet. To reduce the number of redundant network traffic you decide to configure one internal router as an authoritative NTP time provider with a stratum value of 5 and then configure all other routers to synchronize time with it. This router has an IP address of 172.17.8.254 assigned. Which command should you use?
ntp master 5 on the NTP time provider router
ntp server 172.17.8.254 on all routers except the time provider
Which of the following are true regarding SNMP ?
SNMPv1 and SNMPv2 can be compromised because the community string for authentication is sent in clear text
SNMPv3 employs the encryption of packets to prevent snooping by an unauthorized source
Which of the following components is responsible for collecting and consolidating data from network devices that are being monitored by SNMP?
Which of the following methods is used by the SNMP manager when it contacts SNMP Agent and requests information about a monitored network device?
A configured threshold has been exceeded by a network host that is being monitored by an SNMP agent. The Agent sends a trap to its SNMP manager with a notification that the threshold has been exceeded. Which IP port is used by the Agent to send the trap?
Which SNMPv3 security level requires authentication with a username but does not implement encryption?
Your router generates a log message with a severity of 6. What does this indicate?
The message is only informational in nature
You are configuring a router to redirect and consolidate log messages to a syslog server. The router has multiple interfaces. However, you want all log messages being sent to the syslog server to be seen as coming from the same IP address on the router regardless of which interface the message actually exits the router from. Which command is used to accomplish this?
logging source-interface <type>