Routers

Question 1

When a computer knows the destination IP address is not on its network, what message does it send to the default router?

Answer 1

ARP message

Question 2

What is a primary goal of a router?

Answer 2

stop broadcasts

Question 3

On a router by default, all interfaces are ________.

Answer 3

down, administratively down

Question 4

Which command displays the networks a router can communicate with?

Answer 4

show ip route

Question 5

How can you create a default route on a router?

Answer 5

ip route ‘destination-ip’ ‘destination-subnet’ ‘gateway-ip’

Question 6

On a serial connection, what end of the connection needs to set the clock?

Answer 6

DCE

Question 7

Which command can be used to impersonate the service provider and set the speed?

Answer 7

clock rate x

Question 8

How do you create a floating static route?

Answer 8

increase the administrative distance to be greater than the default

Question 9

What two commands are needed when assigning a vlan to a switch port?

Answer 9

switchport mode access

switchport access vlan x

Question 10

What command is used to create a subinterface?

Answer 10

interface FastEthernet x/y.z

.z assigns subinterface to interface

Question 11

What command is used to assign a tag to a subinterface?

Answer 11

encapsulation dot1q z

z refers to subinterface

Question 12

What command is used to enable trunk mode on a port?

Answer 12

switchport mode trunk

Question 13

What is the command for creating a VLAN?

Answer 13

vlan x

Question 14

Which command should you use to assign a vlan to an interface?

Answer 14

switchport access vlan x

Question 15

What command is used to create a subinterface?

Answer 15

interface ‘type’ x/y.z

Question 16

When configuring a trunk port on a switch supporting both Cisco ISL and 802.1q encapsulation, which command should be entered first?

Answer 16

switchport trunk encapsulation dot1q

Question 17

What does Cisco VoIP require from DHCP?

Answer 17

ip address and TFTP server

Question 18

What are the 3 options a DHCP server will most likely assign?

Answer 18

router(gateway), subnet mask, dns server

Question 19

On which of the following platforms is DHCP typically configured?

Answer 19

DHCP from a network device

DHCP relay from a central DCHP server

Question 20

What type of message is DHCP?

Answer 20

broadcast

Question 21

When configuring DHCP for distributing a specific range of addresses, what must you configure first?

Answer 21

ip dhcp excluded-address ‘ip-address range start’ ‘ip-address range end’

Question 22

What command is used to configure DHCP for a vlan?

Answer 22

ip dhcp pool vlan x

Question 23

What command is used to assign DNS server(s)?

Answer 23

dns-server ‘ip-address’ ‘ip-address2’

Question 24

What command is used to show the binding ip addresses?

Answer 24

show ip dhcp binding

Question 25

What windows command is used to end a lease on an IP address from a DHCP server?

Answer 25

ipconfig /release

Question 26

What windows command is used to request a new ip address from a DHCP server?

Answer 26

ipconfig /renew

Question 27

What is the command for a DHCP relay?

Answer 27

ip helper-address 'ip-address'

Question 28

What is the function of routing protocols?

Answer 28

educate routers dynamically without user involvement

Question 29

What is the only way a static route will detect failure?

Answer 29

link status changes to down

Question 30

Which routing protocols use distance vector (DV)?

Answer 30

RIP, EIGRP, BGP

Question 31

What is a distance vector protocol?

Answer 31

only know information from neighbor devices

Question 32

What is a link state protocol?

Answer 32

maintains map of network system, loop free

Question 33

What is the largest network that uses BGP?

Answer 33

the internet

Question 34

Is distance vector or link state more resource efficient?

Answer 34

distance vector

Question 35

Does distance vector or link state have loop free mechanics in place?

Answer 35

link state

Question 36

What is a metric?

Answer 36

measurement for best path

Question 37

What is the metric for RIP?

Answer 37

hops

Question 38

What is the metric for IGRP?

Answer 38

bandwidth/delay

Question 39

Which routing protocols use link state?

Answer 39

OSPF

Question 40

What is the metric for OSPF?

Answer 40

bandwidth

Question 41

What is a feature of EIGRP?

Answer 41

unequal load balancing

Question 42

What is IS-IS?

Answer 42

routing protocol similar to OSPF, developed by OSI

Question 43

What is the default advertising timer for RIPv2?

Answer 43

30 seconds

Question 44

What was one of the most significant changes between RIP versions 1 and 2?

Answer 44

RIPv2 is classless

Question 45

What does the network command do (in RIP)?

Answer 45

tells RIP what networks to advertise tells RIP what interfaces to send advertises out of

Question 46

If a packet comes into a router’s interface from another network and it does not match a route in the routing table, what will the router do with the packet?

Answer 46

drop the packet

Question 47

What command shows the details of the routing protocol?

Answer 47

show ip protocols