Which three describe the reasons large OSPF networks use a hierarchical design? (Choose Three)
Choose 3 — select all that apply
Ato speed up convergence
Bto reduce routing overhead
Cto lower costs by replacing routers with distribution layer switches.
Dto decrease latency by increasing bandwidth.
Eto confine network instability to single areas of the network. F. to reduce the complexity of router configuration.
Correct Answer:ABE
Q142(none)
Which statements describe the routing protocol OSPF? (Choose three.)
Choose 3 — select all that apply
AIt supports VLSM.
BIt is used to route between autonomous systems.
CIt confines network instability to one area of the network.
DIt increases routing overhead on the network.
EIt allows extensive control of routing updates. F. It is simpler to configure than RIP v2.
Correct Answer:ACE
The OSPF protocol is based on link-state technology, which is a departure from the Bellman-Ford vector based algorithms used in traditional Internet routing protocols such as RIP. OSPF has introduced new concepts such as authentication of routing updates, Variable Length Subnet Masks (VLSM), route summarization, and so forth. OSPF uses flooding to exchange link-state updates between routers. Any change in routing information is flooded to all routers in the network. Areas are introduced to put a boundary on the explosion of link-state updates. Flooding and calculation of the Dijkstra algorithm
Q143(none)
Which command should you enter to view the error log in an EIGRP for IPv6 environment?
Ashow ipv6 eigrp neighbors
Bshow ipv6 eigrp topology
Cshow ipv6 eigrp traffic
Dshow ipv6 eigrp events
Correct Answer:D
Q144(none)
Which component of an Ethernet frame is used to notify a host that traffic is coming?
Astart of frame delimiter
BType field
Cpreamble
DData field
Correct Answer:C
Q145(none)
Which command must you enter to guarantee that an HSRP router with higher priority becomes the HSRP primary router after it is reloaded?
Astandby 10 preempt
Bstandby 10 version 1
Cstandby 10 priority 150
Dstandby 10 version 2
Correct Answer:A
The “preempt” command enables the HSRP router with the highest priority to immediately become the active router. QUESTION 146 Which configuration command can u apply to a HSRP router so that its local interface becomes active if all other routers in the group fail? A. no additional config is required B. standby 1 track ethernet C. standby 1 preempt D. standby 1 priority 250 Correct Answer: A Section: (none) Explanation Explanation/Reference: Simply because that will be the default behavior routers would follow in the event all other routers in the HSRP group fail, then it would not keep attrib
Q147(none)
You are configuring your edge routers interface with a public IP address for Internet connectivity. The router needs to obtain the IP address from the service provider dynamically. Which command is needed on interface FastEthernet 0/0 to accomplish this?
Aip default-gateway
Bip route
Cip default-network
Dip address dhcp
Eip address dynamic
Correct Answer:D
Q148(none)
Which type does a port become when it receives the best BPDU on a bridge?
AThe designated port
BThe backup port
CThe alternate port
DThe root port
Correct Answer:D
QUESTION 149 Which two command sequences must you configure on a switch to establish a Layer 3 EtherChannel with an open-standard protocol? (Choose two.) A. interface GigabitEthernet0/0/1 channel-group 10 mode on B. interface GigabitEthernet0/0/1 channel-group 10 mode active C. interface GigabitEthernet0/0/1 channel-group 10 mode auto D. interface port-channel 10 switchport switchport mode trunk E. interface port-channel 10 no switchport ip address 172.16.0.1.255.255.255.0 Correct Answer: BE Section: (none) Explanation Explanation/Reference:
Q150(none)
Which statement about VLAN configuration is true?
AThe switch must be in VTP server or transparent mode before you can configure a VLAN
BThe switch must be in config-vlan mode before you configure an extended VLAN
CDynamic inter-VLAN routing is supported on VLAN2 through VLAN 4064
DA switch in VTP transparent mode save the VLAN databases to the running configuration only
Correct Answer:A
Q151(none)
Refer to the exhibit. After you apply the given configuration to arouter, the DHCP clients behind the device connot communicate with hosts outside of their subnet. Which action is most likely to correct the problem?
AConfigure the dns server on the same subnet as the clients B. Activate the dhcp pool
CCorrect the subnet mask
Dconfigure the default gateway
Correct Answer:D
Q152(none)
Refer to the exhibit. How will the router handle a packet destined for 192.0.2.156?
AThe router will forward the packet via either Serial0 or Serial1.
