Chapter 2

Question 1

A Cisco 1841 Router has what interfaces?

Answer 1

• 2 FastEthernet Interfaces: f0/0 and f0/1.
• 2 Serial Interfaces: S0/0/0 and S0/0/1

Question 2

How many cabling standards can a DB-60 Serial port support?

Answer 2

Five different cabling types.

Question 3

What are the benefits of a Smart Serial Cable?

Answer 3

It is supported by newer routers and allows for more data to be forwarded across few pins. It is a 26-pin connector and is much smaller supporting DTE or DCE configurations.

Question 4

What pins does an Ethernet Cable use to transmit/recieve data?

Answer 4

It uses pins 1, 2, 3, and 6.

Question 5

What two types of cables can be used with Ethernet LAN interfaces?

Answer 5

• A straight-through or patch cable, with the order of the colored pins the same on each end.
• A Cross-Over cable, with pin 1 connected to pin 3, and pin 2 connected to pin 6.

Question 6

What is a Straight-through cable used for?

Answer 6

• Switch to Router
• Switch to PC
• Hub to PC
• Hub to Server

Question 7

What is a Cross-Over cable used for?

Answer 7

• Switch to Switch
• PC to PC
• Switch to Hub
• Hub to Hub
• Router to Router
• Router to Server

Question 8

What mode and command is used to keep unsolicited output separate from y our input?

Answer 8

configuration mode and logging synchronous

Question 9

True or false: A router cannot have multiple interfaces that belong to the same IP subnet?

Answer 9

True, for example, the f0/0 interface is configured at 172.16.3.1/24 and the f0/1 interface configured at 172.16.3.2/24 will cause an overlap error.

Question 10

What is DTE?

Answer 10

Data Terminal Equipment.

Question 11

What is DCE?

Answer 11

Data Circuit-Terminating Equipment.

Question 12

What command allows you to monitor router operations in real time?

Answer 12

debug

Question 13

How would you remove a directly connected network from a router?

Answer 13

shutdown and no ip address

Question 14

What is CDP?

Answer 14

Cisco Discovery Protocol.

Question 15

What command allows the visual information of other Cisco equipment?

Answer 15

show cdp neighbors and show cdp neighbors detail.

Question 16

How do you disable CDP and why?

Answer 16

In config mode, use the command no cdp run. The reason to disable it is because it might be a secuiryt risk due to CDP advertisements being sent out by the router.

Question 17

What are the two ways a router can learn about remote networks?

Answer 17

• Manually, from configured static routes.
• Automatically, from a dynamic routing protocol.

Question 18

What is a stub network?

Answer 18

A stub network is a network accesed by a single route.

Question 19

What command would be used to setup a static route?

Answer 19

• R1# debug ip routing
• R1# conf t
• R1(config)# ip route 172.16.1.0 255.255.255.0 172.16.2.2
• The last IP is the Serial 0/0/0 interface IP on R2, which is the next hop in the network.