Infrastucture Services Part Two - Cahpter One + Two.
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HCL CDC, Jamshedpur.
Questions and Answers
- 1.
The IEEE 802.3 standard for Ethenet defines ?
- A.
Token Ring
- B.
BUS
- C.
Star
- D.
None
Correct Answer
D. NoneExplanation
The IEEE 802.3 standard for Ethernet defines the physical and data link layer specifications for wired Ethernet networks. It does not specifically define any particular network topology such as Token Ring, BUS, or Star. Instead, it focuses on the protocols and standards for transmitting data over Ethernet networks, including the physical media, data encoding, frame formats, and network access methods.Rate this question:
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- 2.
The maximum trunk segment length of 10Base5 is ?
- A.
185 Mtrs
- B.
200 Mtrs
- C.
485 Mtrs
- D.
500 Mtrs
Correct Answer
D. 500 MtrsExplanation
The maximum trunk segment length of 10Base5 is 500 meters. 10Base5 is an Ethernet standard that uses thick coaxial cable as the transmission medium. The "10" in 10Base5 refers to the data transfer rate of 10 Mbps. The "Base" indicates baseband transmission, which means that the entire bandwidth is used for a single communication channel. The "5" refers to the maximum segment length, which in this case is 500 meters. This means that the cable can be up to 500 meters long between two devices without the need for any repeaters or amplifiers.Rate this question:
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- 3.
Which device is needed for implementing TokenRing network ?
- A.
HUB
- B.
Switch
- C.
CAU/MAU
- D.
ROUTER
Correct Answer
C. CAU/MAUExplanation
The CAU/MAU (Control Access Unit/Media Access Unit) is needed for implementing a TokenRing network. The CAU/MAU is responsible for managing the access to the network and controlling the transmission of data. It connects the devices in the network and ensures that only one device can transmit data at a time, using a token passing mechanism. This allows for efficient and reliable communication in a TokenRing network.Rate this question:
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- 4.
The FDDI work at speed of ?
- A.
10 MBPS
- B.
16.6 MBPS
- C.
12.84 MBPS
- D.
100 MBPS
Correct Answer
D. 100 MBPSExplanation
The FDDI (Fiber Distributed Data Interface) operates at a speed of 100 MBPS (Megabits per second). FDDI is a high-speed networking standard that uses optical fiber cables to transmit data. It was designed for use in local area networks (LANs) that require high bandwidth and reliability. The 100 MBPS speed allows for fast and efficient data transmission, making it suitable for applications that demand high performance, such as video streaming, large file transfers, and real-time communication.Rate this question:
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- 5.
The 100BaseT operate in which mode ?
- A.
Siplex
- B.
Half-Duplex
- C.
Full-Duplex
- D.
None
Correct Answer
B. Half-DuplexExplanation
The correct answer is Half-Duplex. 100BaseT operates in half-duplex mode, which means that data can be transmitted in both directions, but not simultaneously. In half-duplex mode, devices take turns sending and receiving data on the network. This mode is commonly used in Ethernet networks where collisions can occur when multiple devices try to transmit data at the same time.Rate this question:
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- 6.
The Collision Detectios is turned off in ?
- A.
Simplex
- B.
Half-Duplex
- C.
Full-Duplex
- D.
None
Correct Answer
C. Full-DuplexExplanation
In a full-duplex communication system, collision detection is turned off because it allows simultaneous two-way communication between devices. Unlike in half-duplex or simplex systems, where data can only flow in one direction at a time, full-duplex systems enable data transmission in both directions simultaneously. This eliminates the possibility of collisions, where two devices transmit data simultaneously and cause signal interference. With collision detection turned off in full-duplex mode, devices can communicate without the need for collision avoidance mechanisms.Rate this question:
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- 7.
The resistance of coaxial cable is ?
- A.
25 OHM
- B.
35 OHM
- C.
50 OHM
- D.
100 OHM
Correct Answer
C. 50 OHMExplanation
Coaxial cable is designed to have a characteristic impedance, which is the resistance that the cable presents to the flow of alternating current. The most common characteristic impedance for coaxial cable used in telecommunications and networking is 50 ohms. This impedance is chosen because it provides a good balance between signal strength and signal quality, minimizing signal loss and interference. Therefore, the correct answer for the resistance of coaxial cable is 50 OHM.Rate this question:
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- 8.
Resistance of UTP cable is ?
- A.
50 OHM
- B.
75 OHM
- C.
100 OHM
- D.
150 OHM
Correct Answer
C. 100 OHMExplanation
The resistance of UTP (Unshielded Twisted Pair) cable is typically 100 OHM. This resistance value is important for maintaining the integrity of the electrical signals transmitted through the cable. It ensures that the impedance of the cable matches the impedance of the connected devices, minimizing signal reflections and distortions. The 100 OHM resistance is a standard specification for UTP cables used in Ethernet networks.Rate this question:
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- 9.
The communication speed of wire used in telephone network support ?
- A.
UpTo 1 MBPS
- B.
Up To 10 MBPS
- C.
Up To 100 MBPS
- D.
Up To 1000 MBPS
Correct Answer
A. UpTo 1 MBPSExplanation
The communication speed of the wire used in the telephone network supports up to 1 MBPS. This means that the wire can transmit data at a maximum speed of 1 megabit per second.Rate this question:
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- 10.
The CAT5e work at ?
- A.
100 MHz
- B.
200 MHz
- C.
350 MHz
- D.
400 MHz
Correct Answer
B. 200 MHzExplanation
CAT5e is a type of Ethernet cable commonly used for networking. It is designed to support data transfer speeds up to 1000 Mbps. The "e" in CAT5e stands for enhanced, indicating that it has improved specifications compared to the original CAT5 cable. CAT5e cables are capable of operating at frequencies of up to 200 MHz, which allows for faster and more reliable data transmission. Therefore, the correct answer is 200 MHz.Rate this question:
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- 11.
The CAT 3 cable is ?
- A.
22 AWG
- B.
23 AWG
- C.
24 AWG
- D.
25 AWG
Correct Answer
C. 24 AWGExplanation
The CAT 3 cable is typically 24 AWG. AWG stands for American Wire Gauge, which is a standardized system for measuring the diameter of electrical wires. The lower the AWG number, the thicker the wire. CAT 3 cable is commonly used for telephone and data transmission, and it is typically made with 24 AWG copper wire.Rate this question:
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- 12.
The communication speed of CAT 5e could support upto ?
- A.
.5 gbps
- B.
1 gbps
- C.
1.2 gbps
- D.
1.5 gbps
Correct Answer
C. 1.2 gbpsExplanation
CAT 5e, also known as Category 5e, is a type of Ethernet cable commonly used for network installations. It has a maximum data transfer rate of 1.2 Gbps. This means that it can support communication speeds of up to 1.2 Gbps, making it suitable for high-speed internet connections and data transmission.Rate this question:
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- 13.
The 100BaseFX supports maximum of ?
- A.
1000 mtrs
- B.
1500 mtrs
- C.
2000 mtrs
- D.
2100 mtrs
Correct Answer
C. 2000 mtrsExplanation
The correct answer is 2000 mtrs because 100BaseFX is a type of Ethernet technology that uses fiber optic cables to transmit data. It has a maximum transmission distance of 2000 meters, which is longer compared to other Ethernet technologies like 10BaseT or 100BaseTX that use copper cables. The use of fiber optic cables allows for higher data transmission rates and longer distances without signal degradation.Rate this question:
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- 14.
The 1000BaseSX is ?
- A.
Single Mode
- B.
Multi Mode
- C.
Both
- D.
Is not Fiber Optic cable
Correct Answer
B. Multi ModeExplanation
The 1000BaseSX is a type of Ethernet standard that uses multi-mode fiber optic cables. Multi-mode fiber optic cables have a larger core diameter, allowing multiple modes or paths for light to travel through the cable. This makes them suitable for shorter distance transmissions, typically within a building or a campus network. Single mode fiber optic cables, on the other hand, have a smaller core diameter and are used for longer distance transmissions. Therefore, the correct answer is multi-mode.Rate this question:
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- 15.
The 10BaseFL is ?
- A.
Fiber-optic cabling for Ring
- B.
Fiber-optic cabling for Star
- C.
Fiber Optic cabling for Ethernet
- D.
Fiber Optic cabling for Fast Ethernet
Correct Answer
C. Fiber Optic cabling for EthernetExplanation
The 10BaseFL refers to fiber-optic cabling specifically designed for Ethernet networks. Ethernet is a widely used networking technology that allows for the transmission of data over local area networks (LANs). Fiber-optic cabling is known for its high bandwidth and long-distance capabilities, making it suitable for Ethernet networks that require fast and reliable data transmission. Therefore, the correct answer is "Fiber Optic cabling for Ethernet."Rate this question:
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- 16.
The Switch could work with ? (Choose all that apply)
- A.
10Base2
- B.
10BaseT
- C.
10Base5
- D.
100BaseT
Correct Answer(s)
B. 10BaseT
D. 100BaseTExplanation
The Switch could work with 10BaseT and 100BaseT. 10BaseT is a type of Ethernet networking technology that uses twisted pair cables for data transmission. 100BaseT is another type of Ethernet technology that supports faster data transfer speeds. Both of these technologies are compatible with Switches, allowing them to effectively transmit data in a network.Rate this question:
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- 17.
The IEEE802.11b work at ?
- A.
2.4 GHz
- B.
5 GHz
- C.
6 GHz
- D.
54 GHz
Correct Answer
A. 2.4 GHzExplanation
The IEEE802.11b works at 2.4 GHz. This frequency range is commonly used for Wi-Fi communication because it offers good signal penetration and coverage. The 2.4 GHz frequency band is also less crowded compared to the 5 GHz band, which means there is less interference from other devices. However, the downside is that the 2.4 GHz band has a lower data transfer rate compared to the 5 GHz band. Nonetheless, the 2.4 GHz frequency is still widely used for various wireless applications, including Wi-Fi routers, smartphones, and other IoT devices.Rate this question:
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May 15, 2023Quiz Edited by
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Oct 27, 2008Quiz Created by
Jamshedpurhcl
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