Review Questions

1.	Which of the following is true about full-duplex Ethernet? Full-duplex Ethernet can both transmit and receive simultaneously and use point-to- multipoint connections. Full-duplex Ethernet can both transmit and receive simultaneously and use point-to- point connections. Full-duplex Ethernet can transmit and receive simultaneously and uses point-to-multipoint connections. Full-duplex Ethernet can not transmit and receive simultaneously and uses point-to- point connections.
2.	Which of the following is not true regarding the 2950 switch? (Choose all that apply.) You can ping from a 2950 switch if configured. You can ping to a 2950 switch if configured. You can telnet to a 2950 switch if configured. You can not telnet from a 2950 switch if configured. You can trace to a 2950 switch if configured. You can not trace from a 2950 switch if configured.
3.	What interface command sets interface fa0/10 on a 2950 switch to run full-duplex Ethernet? full duplex on duplex on duplex full full-duplex set duplex on full
4.	Which command password protects a 2950 switch against unauthorized telnet access? line vty 0 4, login, enable secret line vty 0 4, login, telnet enable line con 0, password cisco line vty 0 4, login, password cisco
5.	If port 2 on card 3 on a 4000 series switch were disabled, what command would enable this interface? set enable port 3/2 set port enable 3/2 set port enable 2/3 set enable port 2/3
6.	If you wanted to verify the duplex on a 2950 switch, port 16, what command should you use? show port 16 show interface 16 show interface e0/16 show interface fe0/16 show interface fa0/16 show interface f16
7.	Which of the following is not true of a 2950 switch? A port can be set to speed 10, full duplex. A port can be set to speed 100, full duplex. A port can be set to auto, full duplex. A port can be set to speed 10, auto.
8.	What command (or commands) could you use to set a description of the Sales printer on card 2, interface 3 for a 4000 switch? (Choose all that apply.) set port name 2/3 Sales Printer set port name 2/3 Sales_Printer description Sales Printer description Sales_printer
9.	If you wanted to set the hostname on a 3550 series switch to Terry_3550>, what command would you use? host name Terry_3550 hostname Terry_3550 set prompt Terry_3550 set system name Terry_3550>
10.	What is the distance that you can run an MMF, 62.5-micron Gigabit Ethernet cable? 400 meters 25 meters 260 meters 3 kilometers 10 kilometers
11.	What is the distance that a single-mode, 9-micron Gigabit using a 1300-nanometer laser can run? 400 meters 25 meters 260 meters Up to 10 kilometers
12.	What is the distance you can run an MMF with 62.5-micron fiber-optic core with a 125-micron outer cladding (62.5/125) using FastEthernet? 25 meters 400 meters 260 meters 3 kilometers
13.	What is the distance you can run, and stay in spec, from a patch panel to a switch using 10BaseT? 5 meters 25 meters 90 meters 100 meters 330 feet
14.	If you wanted interface fa0/22 on a 2950 switch to run only 100Mbps, what command would you use? set port speed 100 0/22 int fa 0/22, speed default set port 0/22, speed 100 int fa 0/22, speed 100
15.	Which of the following is true regarding a port status light on a switch? It is used to see whether a loop has occurred on the network. It is used to identify RTS signaling. When a device is connected to a port, the port status LED light comes on and stays on. When a device is connected to a port, the port status LED light comes on and then goes off.
16.	If you want to delete the startup configuration on a 2950 switch, what command do you use? erase startup-config delete startup-config delete nvram delete startup
17.	If you want to delete the configuration on a 4000 series switch, what command do you use? clear config all clear nvram delete nvram erase startup
18.	What command would you use to identify interface FastEthernet 0/3 on a 2950 switch to be Finance Server? interface fa0/3, description Finance Server interface fa0/3, name Finance Server set port name fa0/3 Finance server set port name fa0/3 Finance_Server
19.	What is the IEEE specification for FastEthernet? 802.3 802.2 802.3u 802.3z
20.	What is the IEEE specification for Gigabit Ethernet? 802.3 802.2 802.3u 802.3z

Answers

1.	B Full-duplex Ethernet uses a point-to-point connection between the transmitter of the transmitting station and the receiver of the receiving station.
2.	D, F You can ping, trace, and telnet to and from all IOS-based switches. For telnet access, the password must be set.
3.	C The privileged command duplex full sets the duplex of a 2950 interface.
4.	D Telnet access is protected at the vty interface.
5.	B The 4000 series of switches uses the set commands. To set a parameter on a certain interface, use the set port command. To enable a port that has been disabled, use the command set port enable slot/port.
6.	E The 2950 switch command-line interface uses the show interface slot/port command, the same as any router that has modular interface cards. As all ports are 10/100, the FastEthernet description is used.
7.	C The speed must be set to 10 or 100 before the duplex configuration can be altered.
8.	A, B The set port command is used to change port parameters, and set port name slot/port description is used to identify the port to an administrator. The first answer is the best one.
9.	B Use the command hostname name to set the hostname on a 3550 series switch.
10.	C The maximum distance a Multi-Mode Fiber, 62.5-micron Gigabit Ethernet link can run is 260 meters.
11.	D Cisco supports up to 10 kilometers for a 1300-nanometer laser run using 9-micron Gigabit Ethernet.
12.	B FastEthernet point-to-point fiber runs can go a maximum distance of 400 meters.
13.	A Although many people break this rule, the specifications state that the patch panel-to-switch distance can be only 5 meters.
14.	D The interface command speed 100 sets the parameters for individual ports. The set port speed port/slot speed command sets the port speed on a 10/100 port.
15.	C If a device is correctly connected to a port and the device is powered on, the port light-emitting diode (LED) will come on and stay on.
16.	A The command erase startup-config deletes the configuration file stored in NVRAM on all IOS- based switches.
17.	A The command that enables you to delete the configuration on a 4000 series switch is clear config all.
18.	A The interface needs to be identified by the keyword description.
19.	C The IEEE committee for FastEthernet is 802.3u.
20.	D The IEEE specification for Gigabit Ethernet is 802.3z.