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Exam A QUESTION 1
Which three restrictions apply to OSPF stub areas? (Choose three.)
A. No virtual links are allowed.
B. The area cannot be a backbone area.
C. Redistribution is not allowed unless the packet is changed to a type 7 packet.
D. The area has no more than 10 routers.
E. No autonomous system border routers are allowed.
F. Interarea routes are suppressed.
Correct Answer: ABE Section: (none) Explanation
Explanation/Reference:
QUESTION 2
What does the command clear ipv6 ospf process accomplish?
A. The OSPF adjacencies are cleared and initiated again.
B. The route table is cleared. Then the OSPF neighbors are reformed.
C. The shortest path first (SPF) algorithm is performed on the LSA database.
D. The OSPF database is repopulated. Then the shortest path first (SPF) algorithm is performed.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 3
Which statement is true about the Forward Information Base (FIB) table?
A. The FIB is derived from the IP routing table and is optimized for maximum lookup throughput.
B. The FIB table is derived from the Address Resolution Protocol table, and it contains Layer 2 rewrite (MAC) information for the next hop.
C. The FIB lookup is based on the Layer 2 destination MAC address.
D. When the FIB table is full, a wildcard entry redirects traffic to the Layer 3 engine.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 4
Refer to the exhibit. Based upon the output of show vlan on switch CAT2, what can we conclude about interfaces Fa0/13 and Fa0/14?
A. that interfaces Fa0/13 and Fa0/14 are in VLAN 1
B. that interfaces Fa0/13 and Fa0/14 are down
C. that interfaces Fa0/13 and Fa0/14 are trunk interfaces
D. that interfaces Fa0/13 and Fa0/14 have a domain mismatch with another switch
E. that interfaces Fa0/13 and Fa0/14 have a duplex mismatch with another switch
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 5
What does the Catalyst switch interface configuration command switchport trunk native vlan 7 accomplish?
A. configures the interface to be a trunking port and causes traffic on VLAN 7 to be 802.1q tagged
B. causes the interface to apply ISL framing for traffic on VLAN 7
C. configures the trunking interface to send traffic from VLAN 7 untagged
D. configures the trunking interface to forward traffic from VLAN 7
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 6
Refer to the exhibit. On the basis of the output generated by the show commands, which two
statements are true? (Choose two.)
A. All interfaces on the switch have been configured as access ports.
B. Because it has not been assigned to any VLAN, interface gigabitethernet 0/1 does not appear in the show vlan output.
C. Because it is configured as a trunk interface, interface gigabitethernet 0/1 does not appear in the show vlan output.
D. There are no native VLANs configured on the trunk.
E. VLAN 1 will not be encapsulated with an 802.1q header.
F. VLAN 2 will not be encapsulated with an 802.1q header.
Correct Answer: CE Section: (none) Explanation
Explanation/Reference:
QUESTION 7
Refer to the exhibit. Host A and Host B are connected to the Catalyst 3550 switch and have been
assigned to their respective VLANs. The rest of the 3550 configuration is the default configuration. Host A is
able to ping its default gateway, 10.10.10.1, but is unable to ping Host B. Given the output displayed in the
exhibit, which statement is true?
A. HSRP must be configured on SW1.
B. A separate router is required to support interVLAN routing.
C. Interface VLAN 10 must be configured on the SW1 switch.
D. The global config command ip routing must be configured on the SW1 switch.
E. VLANs 10 and 15 must be created in the VLAN database mode.
F. VTP must be configured to support interVLAN routing.
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 8
Refer to the exhibit. VLAN2, VLAN3, and VLAN10 are configured on the switch D-SW1. Host computers are on VLAN 2 (10.1.2.0), servers are on VLAN 3 (10.1.3.0), and the management VLAN is on VLAN10 (10.1.10.0). Hosts are able to ping each other but are unable to reach the servers. On the basis of the exhibited output, which configuration solution could rectify the problem?
A. Enable IP routing on the switch D-SW1.
B. Configure a default route that points toward network 200.1.1.0/24.
C. Assign an IP address of 10.1.3.1/24 to VLAN3.
D. Configure default gateways to IP address 10.1.2.1 on each host.
E. Configure default gateways to IP address 10.1.10.1 on each host.
F. Configure default gateways to IP address 200.1.1.2 on each host.
Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 9
Refer to the exhibit. For what purpose is the command show ip cef used?
A. to display rewritten IP unicast packets
B. to display ARP resolution packets
C. to display ARP throttling
D. to display TCAM matches
E. to display CEF-based MLS lookups
F. to display entries in the Forwarding Information Base (FIB)
Correct Answer: F Section: (none) Explanation
Explanation/Reference:
QUESTION 10
Refer to the exhibit. The switchport output in Figure 1 displays the default settings of interface
FastEthernet 0/13 on switch SW1. Figure 2 displays the desired interface settings. Which command
sequence would configure interface FastEthernet 0/13 as displayed in Figure 2?
A. SW1(config-if)# switchport trunk encapsulation dot1q SW1(config-if)# switchport mode trunk SW1(config-if)# switchport trunk native DATA SW1(config-if)# switchport trunk allowed vlan 1,10,20
B. SW1(config-if)# switchport trunk encapsulation dot1q SW1(config-if)# switchport mode dynamic auto SW1(config-if)# switchport trunk native DATA SW1(config-if)# switchport trunk allowed vlan add 1,10,20
C. SW1(config-if)# switchport trunk encapsulation dot1q SW1(config-if)# switchport mode dynamic desirable SW1(config-if)# switchport trunk native vlan DATA SW1(config-if)# switchport trunk allowed vlan 1,10,20
D. SW1(config-if)# switchport trunk encapsulation dot1q SW1(config-if)# switchport mode dynamic desirable SW1(config-if)# switchport trunk native vlan 10 SW1(config-if)# switchport trunk allowed vlan 1,10,20
E. SW1(config-if)# switchport trunk encapsulation dot1q SW1(config-if)# switchport mode dynamic desirable SW1(config-if)# switchport trunk native vlan 10
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 11
An administrator types in the command router ospf 1 and receives the error message: “OSPF process
1 cannot start.” (Output is omitted.) What should be done to correctly set up OSPF?
A. Ensure that an interface has been configured with an IP address.
B. Ensure that an interface has been configured with an IP address and is up.
C. Ensure that IP classless is enabled.
D. Ensure that the interfaces can ping their directly connected neighbors.
Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 12
Which two statements are true about a switched virtual interface (SVI)? (Choose two.)
A. An SVI is created by entering the no switchport command in interface configuration mode.
B. An SVI is created for the default VLAN (VLAN1) to permit remote switch administration by default.
C. An SVI provides a default gateway for a VLAN.
D. Multiple SVIs can be associated with a VLAN.
E. SVI is another name for a routed port.
Correct Answer: BC Section: (none) Explanation
Explanation/Reference:
QUESTION 13
Refer to the exhibit. An administrator is verifying that a CEF FIB entry exists to destination network
192.168.150.0. Given the output generated by the show ip cef and show adjacency detail commands,
which three statements are true? (Choose three.)
A. entry for the destination network 192.168.150.0.
B. The “valid cached adjacency” entry indicates that CEF will put all packets going to such an adjacency to the next best switching mode.
C. The counters (0 packets, 0 bytes) indicate a problem with the 192.168.199.3 next hop IP address.
D. There is an adjacency for the 192.168.199.3 next hop IP address.
E. The number 003071506800 is the MAC address of the 192.168.199.3 next hop IP address.
F. The number 003071506800 is the MAC address of the source IP address.
Correct Answer: ADE Section: (none) Explanation
Explanation/Reference:
QUESTION 14
Refer to the exhibit. Which statement is true?
A. RTA will redistribute the RIP routes into the NSSA as type 7 LSAs. RTB will translate the type 7 LSAs into type 5 LSAs and flood them throughout the OSPF backbone.
B. RTA will redistribute the RIP routes into the NSSA as type 7 LSAs. RTB will flood the type 7 LSAs throughout the backbone.
C. RTA will redistribute the RIP routes into the NSSA as type 5 LSAs. RTB will flood the type 5 LSAs throughout the backbone.
D. RTA will redistribute the RIP routes into the NSSA as type 5 LSAs. RTB will translate the type 5 LSAs into type 7 LSAs and flood them throughout the OSPF backbone.
E. RTA will not redistribute the RIP routes into the NSSA.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 15
What are two Cisco IOS commands that can be used to view neighbor adjacencies? (Choose two.)
A. show ip ospf database
B. show ip ospf neighbors
C. show ip ospf protocols
D. show ip ospf interfaces
Correct Answer: BD Section: (none) Explanation
Explanation/Reference: QUESTION 16
Which enhancement was added to IGMP version 3?
A. membership query message
B. membership report message
C. leave group message
D. source filtering
E. destination filtering
Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 17
Which two tasks are required to configure PIM for IP multicast routing? (Choose two.)
A. Join a multicast group.
B. Enable CGMP.
C. Enable IP multicast routing.
D. Configure the TTL threshold.
E. Enable PIM on an interface.
Correct Answer: CE Section: (none) Explanation
Explanation/Reference:
QUESTION 18
What is the default metric used on IS-IS routers for each interface?
A. The cost is set to 10 for all interfaces.
B. The cost is set to 10 for LAN interfaces and 20 for WAN interfaces.
C. The cost is based on the speed of the interface.
D. The cost is based on a composite of bandwidth and delay of the interface.
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 19
What does IS-IS use to establish and maintain neighbor relationships between IS’s?
A. IIH
B. LSP
C. CLNS
D. CLNP
E. ISH
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 20
What is periodically sent by a DIS on a LAN to ensure that all adjacent neighbors’ IS-IS link-state databases are synchronized?
A. complete SNP (CSNP)
B. partial SNP (PSNP)
C. database query
D. database description packet (DDP)
E. link-state summary
F. hello
Correct Answer: A Section: (none) Explanation
Explanation/Reference:
This volume is part of the Exam Certification Guide Series from Cisco 642-892.Cisco 642-892 in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco 642-892 Certification candidates identify weaknesses,concentrate their study efforts,and enhance their confidence as Cisco 642-892 exam day nears.