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Q. Show the Error control in TCP?
Error control in TCP
Detect lost segments, out-of-order segments, corrupted segments and duplicated segments
Three tools:
- no NACKs
- One time-out counter for every segment sent
Q. What are the Local Network Security Issues? Local Network Security Issues Password Protection - Encrypted username & password Group/Owner ID's - File Permissi
Store-and-forward switch The layer 2 switch accepts a frame on an input line, buffers it briefly, and then routes it to the appropriate output line. Cut-through switch
Question: (a) In relation with a cellular network architecture, describe the following terms: (i) Clusters (ii) Pico cells (iii) Nano cells (iii) Cell breathing (b)
Components of the VPN When using VPN we incorporate many pieces of a jigsaw puzzle each piece services its own function to private the interoperation and the security nec
What is Bookmark A list of pages a user likes to frequently visit. Netscape® Navigator and Explorer® have a "bookmark" menu item which allows users to add favourite sites vi
One of the key roles of a System/Network Administrator is to monitor log files. This usually requires helper scripts (i.e. Perl programs) so a summary of large log files can be qui
After powering up his PC, Bob notices the PC was not able to properly connect to network devices. He obtained the following information from his workstation: C:\>ipconfig Win
FCS= Frame Check Sequence CRC (Cyclic Redundancy Check) algorithm runs in switch that known as FCS (Frame Check Sequence)
Reliability is the probability of success ; where success is defined as compliance to specified requirements. A system or an item is considered reliable if it performs satisfactori
Illustrate the term- Search Engine and Surfing Search Engine: Software used to find information on the Web. Examples are Google, Lycos and Yahoo. Server: A computer with
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