Networking problems
- 1. Where is a hub specified in the OSI model?
Options- A. Data link layer
- B. Session layer
- C. Application Layer
- D. Physical layer Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO
Correct Answer: Physical layer
Explanation:
Hubs are specified or operate at Layer1 i.e, the physical layer in the OSI model. Hubs regenerate electrical signals. A hub sends data packets (frames) to all devices on a network, regardless of any MAC addresses contained in the data packet.
- 2. Which layer 4 protocol is used for a Telnet connection?
Options- A. UDP
- B. IP
- C. TCP
- D. TCP/IP Also asked in: AIEEE, Bank Exams, Analyst, Bank PO, Database Administrator, IT Trainer, Network Engineer
Correct Answer: TCP
Explanation:
Telnet uses TCP at layer 4. It uses IP at layer 3. We know that Telnet uses TCP/IP protocol, but in the question, it is asked specifically at layer 4 what is used in Telnet. So it is TCP at layer4 and IP at layer 3.
- 3. How long is an IPv4 address?
Options- A. 128 bytes
- B. 32 bits
- C. 32 bytes
- D. 128 bits Also asked in: Analyst, Bank Clerk, Network Engineer
Correct Answer: 32 bits
Explanation:
Internet Protocol version 4 (IPv4) which defined an IP address as a 32-bit value
IPv4 is in contrast to IPv6, which defined an IP address as a 128 bits value.
- 4. How many bits are in a MAC address?
Options- A. 64
- B. 48
- C. 32
- D. 16 Also asked in: Bank Exams, CAT, Analyst, Bank PO, Database Administrator, IT Trainer, Network Engineer, Project Manager
Correct Answer: 48
Explanation:
MAC - Media Access Control, address is a globally unique identifier assigned to network devices, and therefore it is often referred to as hardware or physical address.
MAC addresses are 6-byte (48-bits) in length, and are written in MM:MM:MM:SS:SS:SS format.
More in Technical Questions:
Programming
Copyright ©CuriousTab. All rights reserved.