Firewall is ?
Answer: B
Correct answer: can be a hardware as well as software
A firewall is a filter that decides which traffic may pass between networks, and it may be implemented either way: as a dedicated appliance sitting at the edge of the network, or as software running on the host it protects. Both forms are common, and large sites often use both together.
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What is algorithm ?
Answer: C
Correct answer: Step by step procedure for calculations
An algorithm is a finite sequence of unambiguous steps that solves a problem, each step effective and the whole guaranteed to stop. It is worked out before any code is written and can be expressed in plain words or a flowchart, then implemented in whatever language is convenient.
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DNS is the abbreviation of ?
Answer: B
Correct answer: Domain Name System
DNS is the Domain Name System - the distributed directory that turns a name such as www.example.com into the IP address a packet must be sent to. Without it every destination would have to be addressed numerically.
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What is motherboard ?
Answer: B
Correct answer: A circuit board which connects all the elements
The motherboard is the main printed circuit board of the machine. It holds the processor socket, the memory slots, the chipset and the expansion slots, and carries the buses along which all of them exchange data - so every other component either plugs into it or connects through it.
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Which is not a network topology ?
Answer: C
Correct answer: Car
Bus, ring and star are network topologies - the shapes in which nodes are wired together, along with mesh and tree. Car is not a topology of any kind.
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Who is the founder of Apple Computers ?
Answer: C
Correct answer: Steve Jobs
Apple Computer was founded in 1976 by Steve Jobs, Steve Wozniak and Ronald Wayne, with Wozniak designing the Apple I and Jobs driving the venture commercially. Bill Gates co-founded Microsoft, and John McCarthy created LISP and coined the term artificial intelligence.
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Who is regarded as the father of the computer for designing the Analytical Engine ?
Answer: C
Correct answer: Charles Babbage
Babbage designed the Analytical Engine in the 1830s with a mill, a store and punched-card input, anticipating the structure of a modern computer. It was never completed in his lifetime, and Ada Lovelace’s notes on it describe what is regarded as the first algorithm written for a machine.
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Which among following is the lowest form of Computer Language ?
Answer: C
Correct answer: Machine Language
Machine language is the processor’s own binary code - the only form it can execute directly, with no translation of any kind. Assembly language is one step above it, replacing the binary with mnemonics that an assembler converts, and COBOL and Perl are high-level languages further removed still.
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Who invented Java language ?
Answer: C
Correct answer: James Gosling
James Gosling designed Java at Sun Microsystems, where it was released in 1995 with the promise of compiling to bytecode that any Java Virtual Machine could run. Dennis Ritchie created C, John Backus led the FORTRAN team, and Grace Hopper drove the development of COBOL.
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Which among following is responsible for "Traffic Directing" ?
Answer: B
Correct answer: Router
A router reads the destination IP address of each packet, consults its routing table, and forwards the packet along the best path towards that network - directing traffic between networks. A switch forwards frames within one network by MAC address, and a hub simply repeats whatever it receives.
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