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- Question
Which part of a MAC address is called the organizationally unique identifier(OUI)?
Options- A. The first 24 bits, or 3 bytes
- B. The first 12 bits, or 3 bytes
- C. The first 24 bits, or 6 bytes
- D. The first 32 bits, or 3 bytes
- Correct Answer
- The first 24 bits, or 3 bytes
ExplanationThe first 24 bits, or 3 bytes, of a MAC address is called the organizationally unique identifier (OUI).
- 1. Which of the following connection mechanism is used by Ethernet?
Options- A. Token passing
- B. CSMA/CD
- C. CSMA/CA
- D. Host polling Discuss
- 2. Which layer ensures the trustworthly transmission of data across a physical link and is primarily concerned with physical addressing, line discipline, network topology, error notification, ordered delivery of frames, and flow control? Discuss
- 3. Which layer is used for reliable communication between end nodes over the network and provides mechanisms for establishing , maintaining , and terminating virtual circuits; transport - fault detection and recovery; and controlling the flow of information? Discuss
- 4. If a hub has three computers connected to it, how many broadcast and collision domains is the hub creating?
Options- A. Three broadcast and one collision
- B. Three broadcast and three collision
- C. one broadcast and three collision
- D. One broadcast and one collision Discuss
- 5. When a station sends a transmission to the MAC address ff : ff : ff : ff : ff : ff, what type of transmission is it?
Options- A. Unicast
- B. Multicast
- C. Anycast
- D. Broadcast Discuss
- 6. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Options- A. Thicknet coax
- B. Thinnet coax
- C. Category 5 UTP cable
- D. Fiber-optic cable Discuss
- 7. Which of the following is part of the IEEE 802.3u standard?
Options- A. 100Base2
- B. 10Base5
- C. 100Base-TX
- D. 1000Base-T Discuss
- 8. When making a HyperTerminal connection, what must the bit rate be set to?
Options- A. 2400bps
- B. 1200bps
- C. 9600bps
- D. 6400bps Discuss
- 9. What is the specific term for the unwanted signal interference from adjacent pairs in the cable?
Options- A. EMI
- B. RFI
- C. Crosstalk
- D. Attenuation Discuss
- 10. In the operation of CSMA/CD, which host(s) have priority after the expiration of the backoff algorithm?
Options- A. All hosts have equal priority
- B. The two hosts that caused the collision will have equal priority
- C. The host that sent the jam signal after the collision
- D. The host with the highest MAC address Discuss
CISCO Certification problems
Search Results
Correct Answer: CSMA/CD
Explanation:
Ethernet networking uses Carrier Sense Multiple Access with Collision Detection (CSMA/CD), a protocol that helps devices share the bandwidth evenly without having two devices transmit at the same time on the network medium.
Correct Answer: PDUs at the data link layer are called frames and provide physical addressing, plus other options to place packets on the network medium
Correct Answer: The Transport layer uses virtual circuits to create a reliable connection between two hosts
Correct Answer: One broadcast and one collision
Explanation:
If a hub has three computers connected to it, one broadcast and one collision domain is created
Correct Answer: Broadcast
Explanation:
A transmission to the MAC address ff : ff : ff : ff : ff : ff is a broadcast transmission to all stations.
Correct Answer: Fiber-optic cable
Explanation:
Fiber-optic cable provides a more secure, long - distance cable that is not susceptible to EMI interference at high speeds.
Correct Answer: 100Base-TX
Explanation:
IEEE 802.3u is Fast Ethernet at 100Mbps and covers 100Base-TX, 100BaseT4, and 100Base-FX.
Correct Answer: 9600bps
Explanation:
When making a HyperTerminal connection, the bit rate must be set to 9600bps.
Correct Answer: Crosstalk
Explanation:
The term for the unwanted signal interference from adjacent pairs in the cable is crosstalk
Correct Answer: All hosts have equal priority
Explanation:
After the expiration of the backoff algorithm , all hosts have equal priority.
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