CCNP - BSCI Exam cram
be CCNP certified, the following exams need to be
Alternatively, one can take the following exams
to obtain CCNP certification:
The BSCI exam is of 75min duration and there will be
approximately 65 questions. You need to score 690 or
more to pass the exam. Visit
the official website here.
1. Scalable networks:
The key 5 characteristics of Scalable
2. The typical three-layer hierarchical
internetworking model consists of the following:
In real world, a single device may be functioning at both Access layer as well as distribution layer. This is true for even Core layer.
3. Network segmentation:
Network congestion can be addressed by
segmentation of the network. Network segmentation, also
called micro segmentation, can be done by using:
The primary purpose of segmentation is to
reduce congestion in the network.
4. Bridges and switches forwards all
broadcasts, which puts extra load on the network. In
other words, though bridges divide the network into
different collision domains, the broadcast domain remain
only one. This increases the overhead on the network.
5. The Cisco IOS features that allow reduction
in bandwidth are:
6. Snapshot routing builds routing table based
on a snapshot of a dynamic routing table available when
the network is active. The snapshot routing table is
used until another activity occurs on the network, at
which time the routing table is rebuilt. No routing
information is exchanged when the network is quiet.
Snapshot routing can be applied to distance vector
protocols such as IP RIP, IGRP, IPX RIP, and RTMP.
7. Cisco IOS supports the following queuing
RIP (and IGRP) always summarizes routing
information by major network numbers. This is called
IP RIP based networks send the complete routing
table during update. The default update interval is 30
RIP version 2 is a classless routing protocol,
where as RIP version 1 (RIP 1) is a classful routing
protocol. The disadvantage of classfull routing is that
some address space may be wasted. In classless routing,
routing protocols exchange the subnet mask information
during periodic routing updates. This allows variable
subnet masks to be used in the network, allowing better
use of address space. For example, a WAN link may need
only two IP addresses. If you use classless routing
protocol with, say 6 bits for subnetting (62-2 subnets),
only 2 subnet addresses are utilized and the remaining
become wasted. On the other hand, if you use classless
routing protocol, Variable Length Subnet Mask (VLSM) can
be used within the network, giving only 2 valid
addresses for the WAN link, thus saving valuable address
space. (If you are using IP addresses, address space
involves IP addresses).
9. Metric limit for link-state protocols is
10. Convergence is the term used to describe
the state at which all the internetworking devices, running specific routing protocol, are having the same
information about the internetwork in their routing
tables. The time it takes to arrive at common view of
the internetwork is called Convergence Time.