How many different headers are defined to be used by GRE when configuring a tunnel?

A) 3
B) 0
C) 1
D) 2

D
Explanation: D) GRE specifies the use of two headers to create the tunnel: the GRE header itself, which is used to manage the tunnel itself; and another header (referred to as the delivery header), which is used for IP addressing on the unsecure network.

Computer Science & Information Technology

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The __________ fetches program instructions in order from the L2 cache, decodes these into a series of micro-operations, and stores the results in the L1 instruction cache.

A. execution units B. out-of-order execution logic C. fetch/decode unit D. memory subsystem

Computer Science & Information Technology

Scaling a random number as an integer value between 1 and N is accomplished using the expression ____.

A. 1 + (int)rand() / N B. 1 + (int)rand() % N C. (int)rand() / N D. (int)rand() % N

Computer Science & Information Technology