1.
What is the maximum transmission speed of a Category 3 UTP cable?
Correct Answer
A. 16 Mbps
Explanation
Category 3 UTP cable is rated for transmission speeds of up to 16 Mbps
2.
Category 5 UTP cable is rated for transmission speed of up to _____.
Correct Answer
C. 100 Mbps
Explanation
Category 5 UTP cable is rated for transmission speed of up to 100 Mbps
3.
The network you support has a 1000Base-TX switch. Hosts are connected to the switch by Category 5 UTP cables. What is the maximum transmission speed that you would expect the network to operate?
Correct Answer
C. 100 Mbps
Explanation
Although the 1000Base-TX switch is rated at 1000 Mbps, the Category 5 UTP cable is rated for a maximum transmission speed of only 100 Mbps.
4.
What is the maximum transmission speed of a Category 5e UTP cable?
Correct Answer
D. 1000 Mbps
Explanation
Category 5e UTP cable is rated for a maximum transmission speed of 1000 Mbps
5.
The network you support has a 1000Base-TX switch. All hosts have 1000Base-TX network interface cards. What is the minimum cable your network would need to operate at the maximum transmission speed possible?
Correct Answer
C. Category 5e UTP cable
Explanation
1000Base-TX is rated at 1000 Mbps adn Category 5e UTP cable is rated for transmission speeds of up to 1000 Mbps
6.
You work as a network technician for a company that just aquired an adjacent building that is 750 meters away from their current building. You need to connect the network in the two buildings. Both buildings have a 1000Base-LX switch. Which cable would you need to connect the two buildings?
Correct Answer
D. Single-mode fiber optic cable
Explanation
1000Base-LX can use either single-mode or multi-mode fiber optic cable. However, multi-mode 1000Base-LX has a maximum transmission distance of only 550 meters while single-mode 1000Base-LX has a maximum transmission distance of 2000 meters.
7.
Which of the following can be used to connect dissimilar networks?
Correct Answer
C. Gateway
Explanation
A gateway is any hardware and software combination that connects dissimilar network environments
8.
Which of the following devices can be used to connect two similar network segments but keeps network traffic separate on the segments?
Correct Answer
D. Bridge
Explanation
A bridge connects two similar network segments together but keeps traffic separated on both sides of the bridge. Traffic is only allowed to pass through the bridge if it is intended for a host on the other side of the bridge.
9.
Which of the following can be used to connect an Ethernet network to an IBM mainframe?
Correct Answer
C. Gateway
Explanation
A gateway is any hardware and software combination that connects dissimilar network environments and can be used to connect a LAN to a mainframe environment.
10.
Which of the following uses both analog and digital formats?
Correct Answer
E. Modem
Explanation
A modem modulates and demodulates between digital and analog signals
11.
Which of the following devices are used to connect multiple dissimilar network segments?
Correct Answer
C. Router
Explanation
A router can connect multiple similar or dissimilar network segments into an internetwork
12.
Which of the following transmitts data out all its ports?
Correct Answer
A. Hub
Explanation
A hub transmits data out all its ports.
13.
Which of the following can be used to connect to a wireless network?
Correct Answer
D. WAP
Explanation
A Wireless Access Point (WAP) is the connection point for a wireless network.
14.
A ____ is used to connect hosts in a star topology
Correct Answer
D. Hub
Explanation
A hub or switch is the central connection point for a host in a star topology.
15.
Which of the following supports Network Address Translation (NAT)?
Correct Answer
D. Router
Explanation
NAT maps multiple private IP addresses to a single public IP address, allowing users to access a public network such as the Internet. It can be implemented on a router or a firewall.
16.
Which of the following statement is false?
Correct Answer
C. Network Address Translation (NAT) maps multiple private IP addresses to a single public IP address, allowing users to access a public network such as the Internet, and can be implemented on a switch
Explanation
NAT maps multiple private IP addresses to a single IP address, allowing users to access a public network such as the Internet, but can be implemented on a router or firewall, not a switch.
17.
Which of the following can be used to connect a network to the Internet?
Correct Answer
C. Gateway
Explanation
A gateway is any hardware and software combination that connects dissimilar network environments, such as a local area network and the Internet.
18.
Which of the following can be used to connect a host to an Internet Service Provider (ISP)? (choose the best answer)
Correct Answer
A. Modem
Explanation
A modem modulates digital data onto an analog carrier for transmission over the internet and demodulates from the analog carrier to a digital signal at the receiving end. It is used to connect a host to the Internet via an Internet Service Provider (ISP).
19.
You work as the network administrator for a company that just aquired an adjacent building. The network in the current building has a 192.168.1.0 network address. The new building has a 172.16.24.0 network address. Which of the following would you use to connect the two networks?
Correct Answer
D. Router
Explanation
A router connects two or more network segments together and routes packets between the two segments.
20.
Which of the following protects a network with Internet connectivity from attackers on the Internet?
Correct Answer
D. Firewall
Explanation
A firewall prevents attackers on the Internet from direct access to LAN computers. It is often referred to as the first line of defense for a network with Internet connectivity
21.
Which of the following devices are used to connect multiple similar network segments?
Correct Answer
B. Router
Explanation
A router connects multiple segments of a network together
22.
Which of the following can you use to connect the Attachment Unit Interface (AUI) port on a Network Interface Card (NIC) to a patch cable from a 100Base-TX switch?
Correct Answer
D. Transceiver
Explanation
A transceiver is an adapter that allows a networking device to connect to a different type of media than it was designed for. It can be used to connect a NIC with a DB-15 AUI port to a UTP cable used by a 100Base-TX switch.
23.
A ____ can be used to connect two networks that use different protocols.
Correct Answer
C. Gateway
Explanation
A gateway is capable of translating data from one protocol to another and can connect dissimilar network environments that do not use the same protocols.
24.
What is the purpose of a repeater?
Correct Answer
B. It extends network transmission distance by boosting the signal strength
Explanation
A repeater simply regenerates the signal it receives on one port, boosting the signal and sending it out on another port as if it were the original physical source of the transmission. In this way it increases the signal strength, allowing it to travel further.
25.
Which of the following can be used to reduce broadcast traffic?
Correct Answer
C. Router
Explanation
Routers do not use broadcast traffic to locate a host. It used tables instead.
26.
Which of the following can be used to transmit packets between different networks?
Correct Answer
B. Router
Explanation
A router connects different network segements together and is responsible for transmitting packets between different network segments
27.
Which of the following wireless standards has a transmission speed of up to 54 Mbps? (chose all that apply)
Correct Answer(s)
B. 802.11a
D. 802.11g
Explanation
IEEE 802.11a and IEEE 802.11g have transmission speeds of up to 54 Mbps
28.
Which of the following has a maximum transmission speed of 11 Mbps?
Correct Answer
C. 802.11b
Explanation
IEEE 802.11b operates at a maximum speed of 11 Mbps
29.
At what radio frequency does an IEEE 802.11g wireless network operate?
Correct Answer
A. 2.4 GHz
Explanation
IEEE 802.11b and IEEE 802.11g uses the 2.4 GHz frequency band
30.
You work with an IEEE 802.11a wireless network. At which radio frequency does it operate?
Correct Answer
B. 5.0 GHz
Explanation
IEEE 802.11a uses the 5 GHz frequency band