(A) 32 bit
(B) 64 bit
(C) 48 bit
(D) 128 bit
Which agency has developed standards for physical connection interfaces and electronic signaling specifications?
(A) ISO
(B) ANSI
(C) ITU-T
(D) EIA
In which transmission the channel capacity is shared by both communicating devices at all times?
(A) Half duplex
(B) Full duplex
(C) Simplex
(D) Half simplex
Encryption and decryption are the functions of __ layers.
(A) Physical
(B) Presentation
(C) Session
(D) Transport
Where does bridge operate in OSI model?
(A) Data link layer
(B) Physical layer
(C) Application layer
(D) None of the above
In a __ topology if there are n devices in a network, each device has n-1 ports for cable.
(A) Star
(B) Ring
(C) Mesh
(D) Bus
Which layer is closest to transmission medium?
(A) Physical
(B) Network
(C) Transport
(D) Data link
For mutual exclusion to prevail in the system?
(A) There must be at least one resource in a sharable mode
(B) Processor must be a uniprocessor rather than a multiprocessor
(C) At least one resource must be held in a non sharable mode
(D) None of the above