Cisco Practice Final
A network administrator is configuring the authentication for EIGRP routing. The administrator enters these commands: R1(config)# key chain THE_KEY R1(config-keychain)# key 1 R1(config-keychain-key)# key-string key123 What is the next step necessary to enable the authentication for EIGRP routing?
Configure the authentication on all interfaces that are participating in EIGRP.
What are two advantages of EtherChannel? (Choose two.)
Configuring the EtherChannel interface provides consistency in the configuration of the physical links. Spanning Tree Protocol views the physical links in an EtherChannel as one logical connection.
Which step supports disaster recovery and should be performed first when upgrading an IOS system image on a Cisco router?
Copy the current image from the router to a TFTP server.
A network administrator is troubleshooting the EIGRP routing between two routers, R1 and R2. The problem is found to be that only some, but not all networks attached to R1 are listed in the routing table of router R2. What should the administrator investigate on router R1 to determine the cause of the problem?
Do the network commands include all the networks to be advertised?
A laptop cannot connect to a wireless access point. Which two troubleshooting steps should be taken first? (Choose two.)
Ensure that the wireless NIC is enabled. Ensure that the wireless SSID is chosen.
Refer to the exhibit. Which switching technology would allow data to be transmitted over each access layer switch link and prevent the port from being blocked by spanning tree due to the redundant link?
EtherChannel
Which statement describes the Autonomous System number that is used in EIGRP?
It specifies the EIGRP routing process on a router.
Refer to the exhibit. Which destination MAC address is used when frames are sent from the workstation to the default gateway?
MAC address of the virtual router
Which routing protocol is able to scale for large networks and utilizes non-backbone areas for expansion?
OSPF
In the Cisco hierarchical design model, which layer is more likely to have a fixed configuration switch than the other layers?
access
While attending a conference, participants are using laptops for network connectivity. When a guest speaker attempts to connect to the network, the laptop fails to display any available wireless networks. The access point must be operating in which mode?
active
Refer to the exhibit. How did this router learn of the highlighted route in the routing table?
by receiving an update from another OSPF router that has the default-information originate command configured
When the show spanning-tree vlan 33 command is issued on a switch, three ports are shown in the forwarding state. In which two port roles could these interfaces function while in the forwarding state? (Choose two.)
designated root
What is a wireless security mode that requires a RADIUS server to authenticate wireless users?
enterprise
Which wireless network topology would be used by network engineers to provide a wireless network for an entire college building?
infrastructure
Which command will start the process to bundle two physical interfaces to create an EtherChannel group via LACP?
interface range GigabitEthernet 0/4 - 5
Which two metric weights are set to one by default when costs in EIGRP are being calculated? (Choose two.)
k1 k3
What are two reasons to install a single 48-port fixed configuration switch, rather than two 24-port fixed configuration switches, in a wiring closet that supports two classrooms? (Choose two.)
more ports available for end devices reduced power and space requirements
When EtherChannel is configured, which mode will force an interface into a port channel without exchanging aggregation protocol packets?
on
When a range of ports is being configured for EtherChannel, which mode will configure LACP on a port only if the port receives LACP packets from another device?
passive
In which mode is the area area-id range address mask command issued when multiarea OSPF summarization is being configured?
router configuration mode
What does an OSPF area contain?
routers that have the same link-state information in their LSDBs
A network technician is attempting to upgrade an IOS system image on a Cisco 1941 router. Which command should the technician issue to verify the presence of sufficient free space in flash for the new image on the router that is being upgraded?
show flash0:
Which command can be issued on a router to display information about the successors and feasible successors for a destination network when EIGRP is used as the routing protocol?
show ip eigrp topology
Which two parameters must match on the ports of two switches to create a PAgP EtherChannel between the switches? (Choose two.)
speed VLAN information
In RSTP, BPDU frames are sent every ___ seconds by default.
2
Refer to the exhibit. A network engineer is preparing to upgrade the IOS system image on a Cisco 2901 router. Based on the output shown, how much space is available for the new image?
221896413 bytes
By default, EIGRP is able to use up to ___ percent of the bandwidth for EIGRP messages on an EIGRP-enabled interface.
50
Refer to the exhibit. Two routers have been configured to use EIGRP. Packets are not being forwarded between the two routers. What could be the problem?
An incorrect IP address was configured on a router interface.
Which model and which two characteristics would be more likely to be considered in purchasing an access layer switch, as compared to buying switches that operate at the other layers of the Cisco hierarchical design model? (Choose three.)
Catalyst 2960 number of ports PoE
Which method of wireless authentication is currently considered to be the strongest?
WPA2
The customer of a networking company requires VPN connectivity for workers who must travel frequently. To support the VPN server, the customer router must be upgraded to a new Cisco IOS software version with the Advanced IP Services feature set. What should the field engineer do before copying the new IOS to the router?
Issue the show version and the show flash commands to ensure that the router has enough memory and file space to support the new IOS image.
What are three characteristics of the Cisco IOS Software Release 12.4T train? (Choose three.)
It is updated with new features and hardware support. It is derived from the Cisco IOS Software Release 12.4 Mainline train. It receives regular software fixes that are synchronized with the 12.4 Mainline train.
Refer to the exhibit. Why did R1 and R2 not establish an adjacency?
The AS number does not match on R1 and R2.
Refer to the exhibit. A network administrator issues the show ip protocols command. Based on the exhibited output, what can be concluded?
The EIGRP K values are default values.
Which statement describes a characteristic of a Cisco Enterprise Architecture module?
The Enterprise Edge consists of the Internet, VPN, and WAN modules connecting the enterprise with the service provider's network.
Refer to the exhibit. A network administrator is verifying the bridge ID and the status of this switch in the STP election. Which statement is correct based on the command output?
The bridge priority of Switch_2 has been lowered to a predefined value to become the root bridge.
Refer to the exhibit. A network administrator has issued the show ip eigrp neighbors command. What can be concluded from the output?
The first EIGRP neighbor R1 learned about has the IP address 10.10.10.2.
Refer to the exhibit. The routing table on R2 does not include all networks that are attached to R1. The network administrator verifies that the network statement is configured to include these two networks. What is a possible cause of the issue?
The no auto-summary command is missing in the R1 configuration.
Refer to the exhibit. What are two consequences of issuing the displayed commands? (Choose two.)
The routing update information is protected against being falsified. The key is encrypted with the MD5 hashing algorithm.
In wireless networks what is a disadvantage of using mixed mode on an AP?
The wireless network operates slower if one device uses an older standard wireless NIC.
Refer to the exhibit. Why are some of the entries marked O IA?
They correspond to entries that are learned from other areas.
What two STP features are incorporated into Rapid PVST+? (Choose two.)
UplinkFast BackboneFast
What is the purpose of issuing the ip ospf message-digest-key key md5 password command and the area area-id authentication message-digest command on a router?
to configure OSPF MD5 authentication globally on the router
What are two reasons to enable OSPF routing protocol authentication on a network? (Choose two.)
to prevent data traffic from being redirected and then discarded to prevent redirection of data traffic to an insecure link
When would a network engineer configure an access point with channel bonding?
when more throughput is needed
