Which method of transmission allows signals to travel in both directions over a medium simultaneously??
A. ?half duplex
B. ?simplex
C. ?full-duplex
D. ?multiplex
Answer: C
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(Grade Point Average) Modify the program of Fig. 4.9 to calculate the grade-point average. A grade of A is worth 4 points, B is worth 3 points, and so on.
What will be an ideal response?
The most common hybrid cryptography system is based on the ____ key exchange, which is a method for exchanging private keys using public-key encryption.
A. MAC B. RSA C. DES D. Diffie-Hellman
Holding down the ENTER, SPACEBAR, or TAB key causes a(n) ________, or nonprinting character, to appear in the document
A) formatting mark B) footer C) keyboard shortcut D) manual page break
What is the first step a router takes when it receives an Ethernet frame?
A) It performs a lookup of the MAC address. B) It checks the integrity of the frame. C) It performs a lookup of the IP address. D) It determines whether the frame is unicast, multicast, or broadcast.