678 Appendix A: Answers to Review Questions
25
Name a drawback of using LAA.
Addresses must be configured manually.
26
When a mainframe communicates with another mainframe, what type of session is
created?
An SSCP-to-SSCP session.
27
LAA MAC addresses begin with which hexadecimal digits?
40.
28
Full datamode is when the PLS is full duplex and the SLS is ________.
Full duplex.
29
An AS400 is similar to what?
A mainframe.
30
The path control layer of the SNA stack is equivalent to what layer of the OSI model?
The network layer.
Chapter 13
1
What does the command source-bridge proxy-explorer do?
It configures a dynamic RIF cache on the router.
2
What does NCIA stand for?
Native Client Interface Architecture.
3
Which method of encapsulation of LLC2 frames provides for local acknowledgment?
TCP encapsulation.
4
What does virtual multidrop mean?
It is a method of using one physical SDLC connection to a router. The router has several
SDLC connections to cluster controllers.
5
With STUN, which encapsulation method should be used for serial links?
HDLC. This method offers the best performance of the three methods because of the low
overhead.
6
What does STUN connect?
FEPs and cluster controllers across a multiprotocol backbone.
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