Which of the following are displayed when you use the show frame-relay lmi command? (Choose two.)

In this chapter we have described sequence numbers between a sender and receiver as a way to protect a communication stream against substitution and replay attacks. Describe a situation in which an attacker can substitute or replay in spite of sequence numbers. For which type of sequence numbering—one general stream of sequence numbers or a separate stream for each pair of communicators—is this attack effective?

What will be an ideal response?

By default, the classpath consists only of the ________. However, the classpath can be modified by providing the ________ option to the javac compiler.

a. root directory of the package, -d. b. current directory, -d. c. root directory of the package, -classpath. d. current directory, -classpath.