Exam (elaborations)
Networking Exam 3 Questions and Answers
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Networking Exam 3 Questions and Answers
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Networking Exam 3 Questions andAnswers
Hosts - Answer-computers on a TCP/IP network
Name resolution - Answer-the process of mapping IP addresses to Internet host names
Datagrams - Answer-data packets at the network level or equivalent. Also known simply
as A packet
Best effort transmission - Answer-refers to the connectionless transmission method
used by IP
Destination address - Answer-32-bit address field that identifies the host that should
receive that datagram
Protocol number - Answer-IP header field that describes the type of protocol used in the
datagram following a header
Checksum - Answer-value used to verify that a datagram has not changed during the
transmission
Time to Live (TTL) - Answer-header whose value is used to limit the lifespan of a
datagram based on the number of routers it crosses
Hop count - Answer-maximum number of routers that a packet can cross, usually a
default of 32
Executioner - Answer-current router when the TTL field reaches 0
Internet Control Message Protocol (ICMP) - Answer-management and troubleshooting
protocol that provides support through error and control messages
Segments - Answer-(I)A physical network division within a larger physical network.
(II)Tern sometimes used to refer to datagram segments
Overflows - Answer-a condition where a destination system is sent more information
that can be received
Acknowledgement - Answer-special packet type sent by receiving system to
acknowledge successful receipt of one or more datagrams
Sequence number - Answer-identifies order of each piece of information in a packet so
it can be reconstructed appropriately
, Fragmentation offset - Answer-field in the IP packet that specifies distance, in 8-byte
blocks from the beginning of the packet. The offset for the 1st frag is 0
Window - Answer-TCP header field that identifies numbers of segments that can be
sent before the source host expects an acknowledgement from the receipt
Urgent pointer - Answer-high priority data
Out-of-band - Answer-separates data from the main data stream and designates it as
urgent
Telnet - Answer-TCP/IP protocol and application that provides terminal emulation
Host address - Answer-unique computer address on a network segment in a TCP/IP
network
IPv4 - Answer-current IP version, 32-bit addressing scheme
IPv6 - Answer-uses 128-bit with larger address pool
Dotted-decimal notation - Answer-typically used for IP address and subnet mask values
consisting of four decimal values separated by dots
Class - Answer-method of organizing available IPv4 addresses for assignment
Internet Corporation of Assigned Names and Numbers (ICANN) - Answer-responsible
for maintaining IP network address and domain name registration
Private addresses - Answer-an address that can be used for addressing LAN devices
but cannot be used on the internet
Network address Translation (NAT) - Answer-process whereby transmissions can be
routed appropriately from an outside system to internal systems with a private IP
Internet proxy servers - Answer-acts as an intermediary b/w systems to check and
validate incoming requests before passing to the server
Echo request - Answer-TCP/IP message that requests a response from the host
receiving the message
Subnetting - Answer-dividing a network address into smaller networks
Variable Length Subnet Masking (VLSM) - Answer-used instead of all subnets having
the same subnet mask
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