Question
A company’s network experiences intermittent
connectivity issues. Upon analysis, the network technician observes frequent CRC (Cyclic Redundancy Check) errors on a specific network link. What is the most likely cause of the problem?Solution
CRC errors occur when the data received at the Data Link Layer does not match the checksum expected. This typically indicates physical layer issues caused by a faulty network cable, damaged connectors, or defective network interface cards (NICs). 1. CRC is an error-detection mechanism in the Data Link Layer that ensures data integrity during transmission. 2. Faulty hardware or cables introduce noise or distortion, leading to checksum mismatches. 3. Resolving the issue involves replacing the cable, inspecting connectors, or testing hardware for faults. Why Other Options Are Incorrect: • A) Incorrect IP addressing: CRC errors occur at the Data Link Layer, unrelated to IP addressing (Network Layer). • C) Misconfigured router: Routers operate at the Network Layer and do not impact CRC checks. • D) High CPU utilization: CPU issues on servers affect processing speed, not CRC integrity. • E) Overloaded switch ports: Congestion might delay packets but does not generate CRC errors.
Age of ‘A’ after 16 years will be three time of his age 12 years ago. Eight years hence from now, ratio of ages of ‘A’ and ‘B’ will be 2:3, ...
The ratio of age of A and his son is 5:2. If the difference of their ages 4 year ago is 21, then find the sum of ages of A and his son 9 year hence?
Four years from now, the age of 'A' will be 60% of the age of 'B' at that time. The combined present ages of 'A' and 'B' exceed the current age of 'C' b...
‘A’ is 8 years younger than ‘B’ and 6 years elder than ‘C’. If the present age of ‘B’ and ‘D’ is 30 years and 20 years, respectively...
- The present age ratio of Kavya to Neha is 3:5. Seven years ago, Neha was 5 years more than twice the age of Kavya. If present average age of Kavya, Neha an...
The ratio of the present ages of ‘A’ and ‘B’ is 7:6, respectively. Two years hence from now, the age of ‘B’ will be 20 years. If the average...
The current average age of four colleagues - Priya, Qasim, Ron, and Sam - is 30 years. The ratio of the present ages of Sam and Tina is 3:4, respectivel...
Present ages of 'A' and 'B' are in the ratio 7:5, respectively. Present age of 'C' is 60% more than 'B'. If the difference between present ages of 'C' a...
Sum of the present ages of A, B, C and D is 70 years. After 5 years ratio of their ages is 6:4:3:2. What is C’s present age?
- Seven years ago, the age ratio of 'F' and 'G' was 2:3. In five years, their ages will be in the ratio 3:4. What is the current age of 'V' who is 2 years yo...
