Which of the following values are congruent to 1

modulo 9?

In a network, a signal travels from one computer through a device that regenerates and retransmits the signal but does not filter or interpret data, and it is then passed on to another device that uses MAC addresses to forward frames only to the intended recipient. Which two devices were used in this sequence?

A host machine is joining a network and obtains an IP address automatically using DHCP. Which of the following sequence best describes the DHCP handshake process?

Alice chooses p=13, q=17. She selects e=5. Which

of the following statements are true?

In the previous question (Q no. 6, where Alice chooses the values p=13, q=17), If Alice encrypts

the message M=10, what is the ciphertext C? 

(Use : C=M^e mod n)

Which

of the following values satisfy the congruence : x ≡ 4 mod 9

If a≡7(mod11)

and b≡9(mod11),  then which of the

following is/are true?