Q1. - (Topic 8)
How does a router handle an incoming packet whose destination network is missing from the routing table?
A. it discards the packet.
B. it broadcasts the packet to each network on the router.
C. it routes the packet to the default route.
D. it broadcasts the packet to each interface on the router.
Answer: A
Q2. - (Topic 8)
Which two statements about the tunnel mode ipv6ip command are true? (Choose two.)
A. It enables the transmission of IPv6 packets within the configured tunnel.
B. It specifies IPv4 as the encapsulation protocol.
C. It specifies IPv6 as the encapsulation protocol.
D. It specifies IPv6 as the transport protocol.
E. It specifies that the tunnel is a Teredo tunnel.
Answer: A,B
Q3. - (Topic 6)
When you are troubleshooting an ACL issue on a router, which command would you use to verify which interfaces are affected by the ACL?
A. show ip access-lists
B. show access-lists
C. show interface
D. show ip interface
E. list ip interface
Answer: D
Explanation:
Incorrect Answer
show ip access-lists does not show interfaces affected by an ACL.
Q4. - (Topic 3)
Which two are advantages of static routing when compared to dynamic routing? (Choose two.)
A. Configuration complexity decreases as network size increases.
B. Security increases because only the network administrator may change the routing table.
C. Route summarization is computed automatically by the router.
D. Routing tables adapt automatically to topology changes.
E. An efficient algorithm is used to build routing tables, using automatic updates.
F. Routing updates are automatically sent to neighbors.
G. Routing traffic load is reduced when used in stub network links.
Answer: B,G
Explanation:
Since static routing is a manual process, it can be argued that it is more secure (and more prone to human errors) since the network administrator will need to make changes to the routing table directly. Also, in stub networks where there is only a single uplink connection, the load is reduced as stub routers just need a single static default route, instead of many routes that all have the same next hop IP address.
Q5. - (Topic 7)
Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.)
A. ping
B. tracert
C. ipconfig
D. show ip route
E. winipcfg
F. show interfaces
Answer: A,D,F
Explanation:
Ping, show ip route, and show interfaces are all valid troubleshooting IOS commands. Tracert, ipconfig, and winipcfg are PC commands, not IOS.
Q6. - (Topic 3)
What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?
A. 2
B. 8
C. 16
D. unlimited
Answer: B
Explanation:
maximum-paths (OSPF)
To control the maximum number of parallel routes that Open Shortest Path First (OSPF) can support, use the maximum-paths command.
Syntax Description
maximum
Maximum number of parallel routes that OSPF can install in a routing table. The range is from 1 to 16 routes.
Command Default
8 paths
Q7. - (Topic 8)
Which command can you enter to determine whether a switch is operating in trunking mode?
A. show ip interface brief
B. show vlan
C. show interfaces
D. show interface switchport
Answer: D
Q8. - (Topic 4)
Which two options are valid WAN connectivity methods? (Choose two.)
A. PPP
B. WAP
C. DSL
D. L2TPv3
E. Ethernet
Answer: A,C
Explanation:
The Point-to-Point Protocol (PPP) provides a standard method for transporting multi- protocol datagrams over point-to-point links. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. It is a data link layer protocol used for WAN connections.
DSL is also considered a WAN connection, as it can be used to connect networks, typically when used with VPN technology.
Q9. - (Topic 8)
Which feature is configured by setting a variance that is at least two times the metric?
A. equal cost load balancing
B. unequal cost load balancing
C. Path selection
D. path count
Answer: B
Q10. - (Topic 5)
Which statement is correct regarding the operation of DHCP?
A. A DHCP client uses a ping to detect address conflicts.
B. A DHCP server uses a gratuitous ARP to detect DHCP clients.
C. A DHCP client uses a gratuitous ARP to detect a DHCP server.
D. If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict.
E. If an address conflict is detected, the address is removed from the pool for an amount of time configurable by the administrator.
F. If an address conflict is detected, the address is removed from the pool and will not be reused until the server is rebooted.
Answer: D
Explanation:
An address conflict occurs when two hosts use the same IP address. During address assignment, DHCP checks for conflicts using ping and gratuitous ARP. If a conflict is detected, the address is removed from the pool. The address will not be assigned until the administrator resolves the conflict.
(Reference: http://www.cisco.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp.html)