Posted by admin on Jul 30, 2019 in Computers | 0 comments
1.) A group of N stations share a 56-kbps pure ALOHA channel. station outputs a 1000-bit, every 100 sec. maximum value of N?
usable bandwidth is 0.184 x 56 kbps = 10.3 kbps. N = 10300/10 = 1030 stations.
2.) Consider the delay of pure ALOHA versus slotted ALOHA at low load. Which one is less?
transmission can start instantly. At low load, no collisions are expected, the transmission will be successful.With slotted ALOHA, it has to wait for the next slot. This introduces half a slot
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Posted by admin on Jun 27, 2019 in Computers | 0 comments
ReproductionReproduction is an integral feature of all living beings. The process by which a living being produces its own like is called reproduction.
Importance of Reproduction:Reproduction is important for each species, because this is the only way for a living being to continue its lineage. Apart from being important for a particular individual, reproduction is also important for the whole ecosystem. Reproduction helps in maintaining a proper balance among various biotic constituents of the ecosystem.
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Posted by admin on May 27, 2019 in Computers | 0 comments
15. Consider the extended LAN connected using bridges B1 and B2 in the given Figure. a.)A sends a packet to C. (b) E sends a packet to F. (c) F sends a packet to E. (d) G sends a packet to E. (e) D sends a packet to A. (f) B sends a packet to F
a.) B1 will forward this packet on ports 2, 3, and 4. B2 will forward it on 1, 2 and 3. b.)B2 will forward this packet on ports 1, 3, and 4. B1 will forward it on 1, 2 and 3. c) B2 will not forward this packet on any of its ports, and B1 will
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Posted by admin on Mar 28, 2019 in Computers | 0 comments
RIP1
What is the difference between RIPv1 and RIPv2? RIPv1 is a classful routing protocol and RIPv2 is classless.
List similar non IP routing protocols to RIP (ex. From Xerox, Novell, etc.)? Similar protocols to IP RIP are: Xerox Network Systems protocol suite (XNS), Novell’s IPX RIP, and AppleTalk’s Routing Table Maintenance Protocol (RTMP).
What is the UNIX implementation of RIP? any UNIX distributions are based on the popular 4.2 BSD (Berkeley Software Distribution) and implement RIP in either
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Posted by admin on May 5, 2018 in Computers | 0 comments
Secrets of successful project management
Tip #1: define project success criteria. At the beginning of
the project, make sure the Stakeholders share a common understanding of how
they will determine whether this project is Successful. Tip #2: identify
project drivers, constraints, and degrees of freedom. Every project needs to Balance
its functionality, staffing, budget, schedule, and quality objectives. Define each
of these Five project dimensions as either a constraint within which you must
operate,
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Posted by admin on Mar 23, 2018 in Computers | 0 comments
Transport services and protocols: provide communication between app processes running on different hosts.
Send side: breaks app messages into segments, passes to network layer.
RCV side: reassembles segments into messages, passes to app layer.
Network layer: logical communication between host.
Transport layer: local communication between processes -relies on enhances, network layer services.
TCP: congestion control, flow control, connection setup.
Multiplexing(sender): handle data from multiple
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