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ITGSS CERTIFIED TECHNICAL ASSOCIATE DATA COMMUNICATIONS EXAM QUESTIONS WITH VERIFIED ANSWERS
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ITGSS CERTIFIED TECHNICAL ASSOCIATE DATA COMMUNICATIONS EXAM QUESTIONS WITH VERIFIED ANSWERS...
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ITGSS CERTIFIED TECHNICAL ASSOCIATE DATACOMMUNICATIONS EXAM QUESTIONS WITH
VERIFIED ANSWERS
1. What is the function of the protocol field in an IPv4 header? -
ANSWER Indicates the protocol type of the payload. This would
typically be TCP or UDP but could be something else (ICMP or GRE for
instance).
2. Convert the decimal value "72" into binary. - ANSWER 1001000.
3. Convert the binary value "11110010" to decimal. - ANSWER 242
4. Once installed, how would you check the TCP/IP configuration? -
ANSWER Run ipconfig or ifconfig
5. True or false? A router will not forward a packet to another router
when the TTL field is zero. - ANSWER True.
6. Which of the protocols included with TCP/IP reports messages and
errors regarding packet delivery? - ANSWER Internet Control Message
Protocol (ICMP).
7. True or false? The ipconfig utility can be used to empty the DNS
cache. - ANSWER True (though this functionality is not available in
ifconfig).
8. True or false? Receiving an echo reply ICMP message indicates that
the link between two hosts is operational. - ANSWER True
9. If you have a workstation that cannot connect to a server what is the
first test you could do to establish if the cabling is OK? - ANSWER ping
another local system
10. On a UNIX host, which TCP/IP parameters must be defined for the
host to be able to communicate with hosts on a remote network? -
, ANSWER IP Address, Subnet Mask, Default Gateway (address of the
router).
- ANSWER
1. What technology or technologies can you use to isolate broadcast
domains? - ANSWER Routers and VLANs.
2. True or false? The IP address 172.24.0.1 is routable over the Internet.
- ANSWER False. 172.16.0.0 - 172.31.255.255 is the "Class B" private
address range.
3. What is a "Class D" address?. - ANSWER One used for multicasting
4. Which of the following are class C IP addresses? (Choose four): -
ANSWER • 195.243.67.51 - TRUE
165.247.200.100 - FALSE
190.234.24.6 - FALSE
• 11001101 01110100 00000100 00101110 - TRUE
• 11001111 10000001 01111110 10010010 - TRUE
• 213.54.53.52 - TRUE
• 233.168.24.6 - FALSE
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