What is a Hash Function?
A. It creates a small flexible block of data
B. It creates a small,fixed block of data
C. It creates a encrypted block of data
D. None of the mentioned
What is cipher-block chaining?
A. Data is logically €?anded’ with previous block
B. Data is logically €?ored’ with previous block
C. Data is logically €?xored’ with previous block
D. None of the mentioned
What is not a role of encryption?
A. It is used to protect data from unauthorized access during transmission
B. It is used to ensure user authentication
C. It is used to ensure data integrity
D. It is used to ensure data corruption doesn’t happens
What is the preferred way of encryption?
A. Pre shared secret key
B. Using key distribution center (kdc)
C. Public key-encryption
D. Symmetric key
Which of the following factors affect transmission rate in DSL?
A. The gauge of the twisted-pair line
B. Degree of electrical interfernece
C. Shadow fading
D. The gauge of the twisted-pair line and degree of electrical interference
ONT is connected to splitter using _________
A. High speed fibre cable
B. Hfc
C. Optical cable
D. Twisted pair cable