Question
Which of the following protocol is a network layer
protocol and used for reporting errors?Solution
Why this is correct:
ICMP is a network-layer protocol used to send error messages and operational information (e.g., “host unreachable”, “time exceeded”) about problems in the delivery of IP packets. Routers and hosts use ICMP to report issues and diagnostics (ping, traceroute use ICMP). Why the others are wrong:
- 1 (HTTP): Application-layer protocol used for web communication (requests/responses), not network-layer error reporting.
- 2 (FTP): Application-layer protocol for file transfers, not for reporting network errors.
- 3 (ARP): Link-layer / protocol for mapping IP addresses to MAC addresses (not used for reporting network-layer errors).
Which of the following statements about the OSI Model’s Transport Layer is true?Â
If signal-to-interference ratio is 5 dB, signal power is 8 dB, then what is the interference power in dB?
Which statement is true regarding Frequency Modulation(FM)?
In Git version control, which command is used to move changes from the staging area to the local repository, making them part of the project history?Â
Which unit holds data temporarily and loses it when power is off?
Which statement is FALSE about open loop system?
A Decision Support System (DSS) is best described as:
Which of the following statements is true regarding the reliability requirements of the Spiral Model in software development?
Which backup strategy involves creating copies of data that allow for point-in-time recovery and typically includes both full and incremental backups? ...
Fill in the correct option for 25 blank space.
Relevant for Exams:
