Ethernet — Test 1

Correct Answer: A. A. Mac address
Explanation: The Ethernet frame has a header that contains the source and destination MAC address. Each MAC address is of 48 bits.

Correct Answer: B. B. 10101011
Explanation: The start frame delimiter is a 1 byte field in the Ethernet frame that indicates that the preceding bits are the start of the frame. It is always set to 10101011.

Correct Answer: D. D. 48 bits
Explanation: MAC address is like a local address for the NIC that is used to make a local Ethernet (or wifi) network function. It is of 48 bits.

Correct Answer: A. A. A procedure by which two connected devices choose common transmission parameters
Explanation: autonegotiation is a procedure by which two connected devices choose common transmission parameters. It is a signaling mechanism used in Ethernet over Twisted pair cables.

Correct Answer: D. D. All of the mentioned
Explanation: A metropolitan area network (MAN) that is based on Ethernet standards is called an Ethernet MAN. It is commonly used to connect nodes to the Internet. Businesses also use Ethernet MANs to connect their own offices to each other.

Correct Answer: A. A. Encapsulating ppp frames inside ethernet frames
Explanation: PPoE or Point-to-Point protocol over Ethernet was first introduced in 1999. It is popularly used by modern day Internet Service Providers for Dial-up connectivity.

Correct Answer: C. C. Optical fiber
Explanation: Fast Ethernet is mostly used in networks along with Category 5 (Cat-5) copper twisted-pair cable, but it also works with fiber-optic cable. Based on the cable being used, There can be three types of Fast Ethernet.

Correct Answer: D. D. 1500 bytes
Explanation: The minimum size of the payload field is 40 bytes and the maximum size is 1500 bytes. If the payload size exceeds 1500 bytes, the frame is called a jumbo frame.

Correct Answer: A. A. Idle time between frames
Explanation: The inter-frame gap is the idle time for the receiver between the incoming frame flow. The inter-frame gap must be as low as possible for idle connections.

Correct Answer: B. B. Runt frame
Explanation: An ethernet frame that is less than the IEEE 802.3 minimum length of 64 octets is called a runt frame. Such frames are a result of collisions or software malfunctions.