1.
Which of the following cables has a maximum length of 2000m (2km)?
Correct Answer
B. 10Base-FL
Explanation
10Base-FL has a maximum length of 2000m (2km). This type of cable is used in Ethernet networks and is capable of transmitting data up to a distance of 2000 meters. The "FL" in 10Base-FL stands for fiber optic link, indicating that it uses fiber optic cables for data transmission. Fiber optic cables have the advantage of being able to transmit data over longer distances compared to other types of cables, such as twisted pair cables used in 10Base-T.
2.
Which of the following cable types uses Cat3 UTP?
Correct Answer
D. 10Base-T
Explanation
The correct answer is 10Base-T. Cat3 UTP (Unshielded Twisted Pair) cable is commonly used for Ethernet networks that operate at speeds up to 10 Mbps. 10Base-T refers to the Ethernet standard that uses Cat3 UTP cable and supports a maximum distance of 100 meters. The other options, 100Base-FX, 100Base-TX, and 10Base-FL, all refer to Ethernet standards that use different types of cables and operate at higher speeds.
3.
Which of the following cable types has a maximum length of 40km?
Correct Answer
C. 10GBase-ER
Explanation
10GBase-ER has a maximum length of 40km. This is because ER stands for Extended Reach, indicating that it is designed for long-distance transmissions. The "10G" in the name refers to the data rate of 10 gigabits per second. Therefore, 10GBase-ER is a type of cable that can support a data rate of 10Gbps and has a maximum length of 40km, making it suitable for long-distance communication.
4.
Which of the following cable types has a maximum length of 100m? (choose 2)
Correct Answer(s)
A. 10Base-T
D. 100Base-TX
Explanation
10Base-T and 100Base-TX are the cable types with a maximum length of 100m. 10Base-T is an Ethernet cable type that supports a maximum length of 100 meters and operates at a data rate of 10 Mbps. Similarly, 100Base-TX is an Ethernet cable type that also has a maximum length of 100 meters but operates at a higher data rate of 100 Mbps. Both of these cable types are commonly used in local area networks (LANs) for connecting devices such as computers, switches, and routers.
5.
Which of the following cable types uses MMF (Multimode Fiber)?
Correct Answer
A. 10Base-FL
Explanation
10Base-FL uses MMF (Multimode Fiber). MMF is a type of fiber optic cable that allows multiple modes or rays of light to propagate simultaneously. 10Base-FL is an Ethernet standard that uses fiber optic cables to transmit data at a rate of 10 Mbps. The "FL" in 10Base-FL stands for fiber link, indicating that it uses fiber optic cables. Therefore, 10Base-FL is the correct answer as it specifically mentions the use of fiber optic cables, which are typically multimode fibers.
6.
Which of the following cable types uses Cat5 UTP or Cat5e UTP?
Correct Answer
C. 100Base-TX
Explanation
Cat5 UTP and Cat5e UTP are types of Ethernet cables that are commonly used for networking. They are capable of supporting data transfer speeds of up to 100 Mbps. The cable type that uses Cat5 UTP or Cat5e UTP is 100Base-TX, which is a standard for Fast Ethernet. This means that 100Base-TX networks use Cat5 UTP or Cat5e UTP cables for their connections.
7.
What is the maximum segment length of 1000Base-LX?
Correct Answer
D. 5000m
Explanation
The correct answer is 5000m. 1000Base-LX is a type of Ethernet technology that uses long wavelength lasers to transmit data over fiber optic cables. It has a maximum segment length of 5000m, which means that the cable can be up to 5000 meters long without any loss in signal quality or data transmission speed. This makes it suitable for long-distance networking applications.
8.
What is the maximum segment length of 1000Base-CX?
Correct Answer
D. 25m
Explanation
The maximum segment length of 1000Base-CX is 25m. This is because 1000Base-CX is a type of Ethernet cable that uses copper twisted pair cables to transmit data. Copper cables have limitations in terms of signal degradation over distance, and 1000Base-CX is specifically designed for short-range connections, such as within a data center or between switches in close proximity. Therefore, the maximum segment length is limited to 25m to ensure reliable data transmission without significant signal loss.
9.
Which of the following cable types uses Cat5e or Cat6 UTP with 4 pairs?
Correct Answer
B. 1000Base-T
Explanation
The correct answer is 1000Base-T. This cable type uses Cat5e or Cat6 UTP with 4 pairs. Cat5e and Cat6 are Ethernet cable standards that support gigabit Ethernet speeds, which is what 1000Base-T refers to. The "T" in 1000Base-T stands for twisted pair, indicating that it uses twisted pair cables like Cat5e or Cat6.
10.
What types of connectors are used with 1000Base-LX? (choose 2)
Correct Answer(s)
C. SC
D. LC
Explanation
The correct answer is SC and LC. These are the types of connectors used with 1000Base-LX. ST and RJ-45 connectors are not compatible with 1000Base-LX.
11.
What type of connector is used with 10Base-T?
Correct Answer
A. RJ-45
Explanation
RJ-45 is the correct answer because it is the type of connector commonly used with 10Base-T Ethernet networks. 10Base-T is a type of Ethernet standard that uses twisted pair cables for data transmission, and RJ-45 connectors are specifically designed for use with twisted pair cables. RJ-11 connectors, on the other hand, are typically used for telephone connections and are not suitable for Ethernet networks. LC and ST connectors are used with fiber optic cables, which are not typically used for 10Base-T Ethernet networks.
12.
What type of connector is used with 10Base-FL?
Correct Answer
A. ST
Explanation
The correct answer is ST. ST connectors are commonly used with 10Base-FL, which is a type of Ethernet networking standard. ST connectors have a bayonet-style coupling mechanism and are often used with multimode fiber optic cables. They provide a secure and reliable connection for transmitting data over a network.
13.
What type of connector is used with 100Base-TX?
Correct Answer
D. RG-45
Explanation
The correct answer is RG-45. RG-45 is a type of connector commonly used with 100Base-TX Ethernet networks. It is a registered jack connector that is similar in appearance to an RJ-45 connector, but with some slight differences. It is designed to provide a reliable and secure connection for transmitting data at high speeds over twisted-pair copper cables.
14.
What type of connector is used with 100Base-FX?
Correct Answer
C. SC
Explanation
The correct answer is SC. SC connectors are commonly used with 100Base-FX, which is a type of Ethernet network that uses fiber optic cables. SC connectors are small, square-shaped connectors that provide a secure and reliable connection for transmitting data over fiber optic cables. They are easy to install and remove, making them a popular choice for network installations.
15.
What type of connector is used with 1000Base-T?
Correct Answer
A. RJ-45
Explanation
RJ-45 is the correct answer because it is the connector commonly used with 1000Base-T Ethernet, which is a type of Gigabit Ethernet technology. RJ-45 connectors have 8 pins and are used to connect network devices such as computers, routers, and switches to a local area network (LAN) using twisted pair cables. RJ-11 connectors, on the other hand, are used for telephone connections and are not suitable for Ethernet networking. LC and ST connectors are used with fiber optic cables, which are not typically used for 1000Base-T Ethernet connections.
16.
What type of connector is used with 1000Base-SX?
Correct Answer
C. SC
Explanation
The correct answer is SC. SC connectors are commonly used with 1000Base-SX, which is a type of gigabit Ethernet over fiber optic cable. SC connectors have a push-pull mechanism, making them easy to connect and disconnect. They are also known for their low insertion loss and high return loss, making them suitable for high-speed data transmission. ST, LC, and RJ-11 connectors are not typically used with 1000Base-SX.
17.
What type of connector is used with 1000Base-LX? (choose 2)
Correct Answer(s)
A. SC
B. LC
Explanation
The correct answer is SC and LC. These are both types of fiber optic connectors that are commonly used with 1000Base-LX, which is a type of gigabit Ethernet. SC and LC connectors are designed to provide a secure and reliable connection for transmitting data over long distances using fiber optic cables. They are known for their small form factor and easy installation, making them popular choices in networking and telecommunications applications.
18.
What is the maximum length 1000Base-SX?
Correct Answer
D. 550m
Explanation
The maximum length for 1000Base-SX is 550m. This refers to the maximum distance that can be covered by a 1000Base-SX Ethernet connection using multimode fiber optic cables. This length limitation is due to the signal degradation that occurs over longer distances in multimode fiber.
19.
What is the maximum segment length of 10GBase-LR?
Correct Answer
C. 10km
Explanation
The maximum segment length of 10GBase-LR is 10km. This means that the maximum distance that can be covered by a single segment of 10GBase-LR is 10 kilometers.
20.
What is the maximum segment length of 10GBase-SR?
Correct Answer
C. 300m
Explanation
The maximum segment length of 10GBase-SR is 300m. This means that the maximum distance between the transmitter and receiver in a 10GBase-SR network should not exceed 300 meters. Beyond this distance, the signal may degrade and result in unreliable or poor network performance.