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What is meant by horizontal scaling and vertical scaling?
Ans) Horizontal scaling means adding or removing client workstations with only a small performance impact.
Vertical scaling means migrating to a larger and quicker server machine or multiservers.
Question: (a) Short Message Service (SMS) is a service available on most mobile phones that allows the sending of short messages between mobile phones, other handheld devices
Q. Explain Stop--and--Wait automatic repeat request? 1. Numbering frames prevents the retaining off duplicate frames. 2. Numbered acknowledgement are needed in case of delay
SONET Frame Format SONET uses a basic transmission rate of STS -1 that is equivalent to 51.84 mbps. Higher level signals are integer multiples of the base rate. For exa
Q. Illustrate User Agent Services? User Agent (UA) Services - Provide template for user to compose a message - Reads incoming messages - Allows a user to reply to m
Can you describe what a FIREWALL is?
As discussed in the earlier section each computer linked to the Internet has a unique address. Let's assume your IP address is 1.2.3.4 & you wish to send a message to the computer
What protocol can be applied when you need to transfer files between different platforms, such among UNIX systems and Windows servers? Use FTP (File Transfer Protocol) for file
What is Security solutions Though there are a number of security solutions available due to sophistication in technology, there are a number of risks and difficulties attached
What is DUAL in EIGRP?
Q. Building a Defense in networking? When building a defense you must use a layered approach that includes securing - The network infrastructure the communications protocol
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