Introductory Quiz

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Introductory Quiz

• Dr Suthikshn Kumar

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Q1 A port number is used for

• Identifying the process running on the host.
• Identifies the Socket
• Identifies the Serial port or parallel port of
  the machine

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Q2 in IPv4, the IP address is

• 16 bits
• 32 bits
• 64 bits
• 128 bits

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Q3 Indicate the Transport service requirements
of common apps
Time Sensitive no no no yes, 100s msec yes,
few secs yes, 100s msec yes and no
Application file transfer e-mail Web
documents real-time audio/video stored
audio/video interactive games instant messaging
Bandwidth elastic elastic elastic audio
5kbps-1Mbps video10kbps-5Mbps same as above few
kbps up elastic
Data loss
a. Loss tolerant b. No loss
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Q4 Whether the following Internet transport
protocol services is TCP or UDP?

• connection-oriented setup required between
  client and server processes
• reliable transport between sending and receiving
  process
• flow control sender wont overwhelm receiver
• congestion control throttle sender when network
  overloaded
• does not provide timing, minimum bandwidth
  guarantees

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Q5 Identify whether the underlying transport
protocol is TCP or UDP?
Application layer protocol SMTP RFC
2821 Telnet RFC 854 HTTP RFC 2616 FTP RFC
959 proprietary (e.g. RealNetworks) proprietary (
e.g., Dialpad)
Underlying transport protocol
Application e-mail remote terminal access Web
file transfer streaming multimedia Internet
telephony
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Q6 DNS function is to

• DNS is used for mapping host names and email
  destinations to IP addresses.
• DNS is used for Email address mapping to peoples
  names
• DNS is used for storing telephone numbers of host
  names

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Q7 Why not centralize the DNS name servers

• single point of failure
• traffic volume
• distant centralized database
• Maintenance difficulty
• All of the above.

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Q8 A recursive query for DNS is

• 1.The resource record requested works its way
  back, known as Recursive Query
• 2. A DNS name server keeps searching its resource
  record recursively
• 3. DNS name servers keep querying each other

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Q9 An Authoritative name server is

• Root name server
• Web server
• Local name server
• Intermediate name server
• DNS Name Server which has authoritative record

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Q10 DNS Resource records are

• 5 tuples
• 3 tuples
• 6 tuples
• singletons

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Q11 Resource Record does not contain

• Domain name tells the domain to which this
  record applies.
• Time_to_live field gives an indication of how
  stable the record is. Information that is highly
  stable is assigned large value such as 86400.
  Information that is highly volatile is assigned a
  smaller value as 60.
• Class field is always IN for internet
  information. For non-internet information, other
  codes can be used.
• Type field tells what kind of record this is.
• Web page

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Q12 E-mail basic functions ARE NOT

• Composition
• Transfer refers to moving of messages from
  sender to recipients
• Reporting Informing the originator whether the
  message was delivered or rejected
• Displaying incoming messages
• Disposition what is done to the message by the
  recipient such as throwing away, saving etc.
• Chatting online

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Q13 SMTP Protocol uses

• TCP to reliably transfer email message from
  client to server
• direct transfer sending server to receiving
  server
• three phases of transfer
• handshaking (greeting)
• transfer of messages
• closure
• 7-bit ASCII
• http protocol

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Q14 MIME Multipurpose Internet Mail Extensions
was not introduced to solve following problem

• Languages with accents (French, German).
• Languages in non-Latin alphabets (Hebrew,
  Russian).
• Languages without alphabets (Chinese, Japanese).
• Messages not containing text at all (audio or
  images).
• For transmitting messages containing Smileys

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Q15 POP3 stands for

• Post Office Protocol Version 3
• Pipe outside protocol release 3
• Pop version 3 music player
• POPular protocol in 3 layers

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Q16 IMAP stands for

• Internet Message Access Protocol
• Internet manager Program
• Immediate Mail Access Program
• Indian Map

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Q17 Email Additional Features are

• Filters
• Spam ( junk email )
• Vacation Daemon
• Webmail( Hotmail )
• Virus protection
• Alarm

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Q18 Webmail was invented by

• Sabeer Bhatia
• Aishwarya Rai
• Manmohan Singh
• Kumarswamy

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Q19 Non Html pages can be opened in browser
using

• Cannot be opened
• A browser plug-in.
• A helper application.
• User save and open

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Q20 The Server Side performance improvement can
be achieved for web servers using

• server farm.
• Multithreading
• Caching
• TCP Handoff

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Q21 Web Cookies are

• Files given by the server to client
• HTTP commands
• HTML files
• Viruses sent by malicious programs

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Q22 Static web pages and Dynamic Web pages
differ in

• Static web pages are constant
• Dynamic web pages change their content either on
  server or client
• Dynamic web pages use PHP, CGI, Java

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Q23 WAP stands for

• Wireless Application Protocol
• Wired Adaptive Program
• Where are All the people?
• Who Asked Pundit?

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Q24 Following are Internet Browsers except

• Internet Explorer
• Netscape Navigator
• Firefox Mozilla
• Amaya
• Latex

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Q25. Following are the web servers except

• Apache
• Microsoft IIS
• Adobe Acrobat

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Q26. Who developed the first internet browser?

• Marc Anderson
• Tim Berners Lee
• Bill Gates
• Steve Jobs

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Q27. An applet executes on

• Web server
• Client machine
• Network

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Q28. World Wide Web was invented by

• Tim Berners Lee
• Albert Einstein
• Steven Spielberg
• Vladimir Putin

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Q29. WWW was invented in which place

• CERN, Europe
• Microsoft, USA
• Oxford University, UK
• Nokia Research, Finland

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Q30. Intranet can be implemented using

• Firewall
• Honeypot
• Spam Filter
• Electric Fence

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Q31. Credit Card Transaction is made possible
using Following

• Secure Electronic Transaction
• Digital Signature
• Digital Certificate
• Message Digest

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Q32. Following programming languages are used for
Server side scripting except

• Java
• PHP
• Perl
• C

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Q33. The http methods by which client can send
data to server are

• Get
• Post
• Email
• Courier

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Q34.