GATE Exam Model question Paper

I am looking for GATE computer Science exam previous year question paper, please provide here???

[Kiran Chandar]

You are looking for GATE computer Science exam previous year question paper, I am giving here:

A scheduling algorithm assigns priority proportional to the waiting time of a process. Every process
starts with priority zero (the lowest priority). The scheduler re-evaluates the process priorities every
T time units and decides the next process to schedule. Which one of the following is TRUE if the
processes have no I/O operations and all arrive at time zero?
(A) This algorithm is equivalent to the first-come-first-serve algorithm.
(B) This algorithm is equivalent to the round-robin algorithm.
(C) This algorithm is equivalent to the shortest-job-first algorithm.
(D) This algorithm is equivalent to the shortest-remaining-time-first algorithm.

The transport layer protocols used for real time multimedia, file transfer, DNS and email,
respectively are
(A) TCP, UDP, UDP and TCP
(B) UDP, TCP, TCP and UDP
(C) UDP, TCP, UDP and TCP
(D) TCP, UDP, TCP and UDP

Using public key cryptography, X adds a digital signature σ to message M, encrypts <M, σ>, and
sends it to Y, where it is decrypted. Which one of the following sequences of keys is used for the
operations?
(A) Encryption: X’s private key followed by Y’s private key; Decryption: X’s public key followed
by Y’s public key
(B) Encryption: X’s private key followed by Y’s public key; Decryption: X’s public key followed
by Y’s private key
(C) Encryption: X’s public key followed by Y’s private key; Decryption: Y’s public key followed
by X’s private key
(D) Encryption: X’s private key followed by Y’s public key; Decryption: Y’s private key followed
by X’s public key

An index is clustered, if
(A) it is on a set of fields that form a candidate key.
(B) it is on a set of fields that include the primary key.
(C) the data records of the file are organized in the same order as the data entries of the index.
(D) the data records of the file are organized not in the same order as the data entries of the index.

Which of the following statements is/are FALSE?
1. For every non-deterministic Turing machine, there exists an equivalent deterministic
Turing machine.
2. Turing recognizable languages are closed under union and complementation.
3. Turing decidable languages are closed under intersection and complementation.
4. Turing recognizable languages are closed under union and intersection.
(A) 1 and 4 only (B) 1 and 3 only (C) 2 only (D) 3 only







For detailed paper here is attachment: