Tag: cisco-ccna

Questions Related to cisco-ccna

  1. For a window size of 3 the ack4 signal says send the 4th packet.

  2. For a window size of three, the packets will be sent in three different routes and acknowledgment is expected for each.

  3. For a window size of 3 the acknowledgement is always ack3 to notify THAT the 3 packets were received.

  4. None of the above.


Correct Option: A
  1. PVC

  2. LCI

  3. DLCI

  4. ASIC


Correct Option: C
Explanation:

To solve this question, the user needs to have a basic understanding of computer networking and the different components that make up a network. Specifically, the user should be familiar with Ethernet and Frame Relay, as well as the acronyms associated with these technologies.

Explanation of each option:

A. PVC: PVC stands for Permanent Virtual Circuit, which is a type of connection used in Frame Relay networks. This option is correct because PVC is the equivalent of MAC in Ethernet. Both PVC and MAC provide a unique identifier for each device on the network.

B. LCI: LCI stands for Link Connection Identifier, which is a term used in ATM (Asynchronous Transfer Mode) networks. This option is incorrect because it is not related to Frame Relay.

C. DLCI: DLCI stands for Data Link Connection Identifier, which is a term used in Frame Relay networks. This option is correct because DLCI is the equivalent of MAC in Ethernet. Both DLCI and MAC provide a unique identifier for each device on the network.

D. ASIC: ASIC stands for Application-Specific Integrated Circuit, which is a type of integrated circuit designed for a specific application. This option is incorrect because it is not related to either Ethernet or Frame Relay.

Therefore, the correct answer is:

The Answer is: C. DLCI

  1. A channel service unit/digital service unit (CSU/DSU)

  2. An Ethernet card

  3. DTE

  4. None of the above.


Correct Option: A

The section of the carrier's network that is shared is often referred to as a WAN.

  1. True

  2. False


Correct Option: B
  1. Token Ring

  2. Ethernet

  3. Switched Circuit

  4. None of the above


Correct Option: A

Which of the following statements is/are true about metrics used in routing protocols?

  1. A metric is the administrative distance of a routing protocol.

  2. A metric is a measure of trustworthiness and availability of a route.

  3. Both of the above

  4. none of the above


Correct Option: B

AI Explanation

To answer this question, we need to understand the concept of metrics in routing protocols.

Option A) A metric is the administrative distance of a routing protocol - This option is incorrect. The administrative distance is a concept used in routing to determine the preferability of routes from different routing protocols. It is not the same as a metric, which is a value used to measure the desirability of a route.

Option B) A metric is a measure of trustworthiness and availability of a route - This option is correct. In routing protocols, a metric is a value assigned to a route to represent its desirability. It can be based on various factors such as bandwidth, delay, reliability, or cost. A lower metric typically indicates a more preferred route.

Option C) Both of the above - This option is incorrect. Option A is incorrect, as explained above.

Option D) None of the above - This option is incorrect. Option B is correct, as explained above.

The correct answer is B. This option is correct because a metric in routing protocols is a measure of trustworthiness and availability of a route.

_______________ transparency is a primary advantage of both bridging and switching.

  1. Encryption

  2. Upper layer protocol

  3. Lower Layer protocol

  4. none of the above


Correct Option: B

AI Explanation

To answer this question, you need to understand the concept of transparency in networking.

Transparency refers to the ability of a networking technology to operate without the need for the user or application to have knowledge of its underlying details. In other words, it allows for seamless communication between different devices or networks without requiring any specific configuration or intervention.

Both bridging and switching are networking technologies that provide transparency. They operate at the data link layer (Layer 2) of the OSI model and are responsible for forwarding data packets within a local area network (LAN).

Option A) Encryption - Encryption is a security mechanism used to protect data by converting it into a form that cannot be easily understood by unauthorized users. While encryption can be used in conjunction with bridging and switching, it is not directly related to the transparency aspect.

Option B) Upper layer protocol - This option is the correct answer. Upper layer protocols, such as TCP (Transmission Control Protocol) and UDP (User Datagram Protocol), are responsible for providing services and functionality at higher layers of the OSI model (Layers 4 to 7). While upper layer protocols are not directly related to the operation of bridging and switching, their transparency is a primary advantage because they can seamlessly communicate with different devices or networks without requiring specific knowledge or configuration.

Option C) Lower Layer protocol - Lower layer protocols, such as Ethernet and Wi-Fi, operate at the physical and data link layers (Layers 1 and 2) of the OSI model. While lower layer protocols are involved in the operation of bridging and switching, they are not the primary advantage in terms of transparency.

Option D) None of the above - This option is incorrect because the correct answer is Option B.

Therefore, the correct answer is B) Upper layer protocol. This option is correct because the transparency provided by bridging and switching allows upper layer protocols to seamlessly communicate without requiring specific knowledge or configuration.