2725884
Pregunta 1
Pregunta
in the OSI Model, when data is transmitted from device A to device B, the header from A's layer 5 is read by B's ____________ Layer.
Respuesta
-
physical
-
transport
-
session
-
presentation
Pregunta 2
Pregunta
The _______ Layer is responsible for moving frames from on hop to the next?
Respuesta
-
physical
-
data link
-
transport
-
none
Pregunta 3
Pregunta
The ____ Layer is responsible for the delivery of message from one process to another
Respuesta
-
network
-
physical
-
transport
-
none
Pregunta 4
Pregunta
In the OSI model, encryption and decryption are functions of the _____ layer?
Respuesta
-
transport
-
session
-
presentation
-
application
Pregunta 5
Pregunta
Routers function in the _____ layer?
Respuesta
-
data link
-
data link and network
-
physical and data link
-
physical,data link, and network
Pregunta 6
Pregunta
switches function in the _____ layers.
Respuesta
-
data link
-
data link and network
-
physical and data link
-
physical, data link, and network
Pregunta 7
Pregunta
_______ has a higher transmission rate in the downstream direction than in the upstream direction
Respuesta
-
ADSL
-
HDSL
-
SDSL
-
VDSL
Pregunta 8
Pregunta
in an ESS the _______ stations are part of a wired LAN.
Respuesta
-
AAL5
-
AP
-
ATM
-
BSS
Pregunta 9
Pregunta
PPP is a _______ layer protocol?
Respuesta
-
data link
-
network
-
physical and data link
-
network and data link
Pregunta 10
Pregunta
when the internet started it was decided to make the network layer a ______ service to make it simple
Respuesta
-
connectionless
-
connection oriented
-
virtual
-
none
Pregunta 11
Pregunta
in a ____ service, there is a relation between all packets belonging to a message?
Respuesta
-
connectionless
-
connection oriented
-
virtual
-
none
Pregunta 12
Pregunta
In a connection-oriented service, each packet is forwarded based on the______.
Respuesta
-
destination address
-
label
-
source address
-
none
Pregunta 13
Pregunta
_________ control means regulation the amount of data a source can send without overwhelming the destination.
Respuesta
-
congestion
-
error
-
flow
-
none
Pregunta 14
Pregunta
______ control in a network means handling a situation in which too many packets are present in an area of the internet
Respuesta
-
flor
-
error
-
congestion
-
none
Pregunta 15
Pregunta
In class C, the netid is between
Respuesta
-
0 to 127
-
128 to 191
-
192 to 223
-
none
Pregunta 16
Pregunta
In classless addressing, a ____ is assigned to an organization.
Respuesta
-
fixed-length
-
fixed number of blocks
-
variable-length block
-
none
Pregunta 17
Pregunta
The number of addresses assigned to an organization in classless addressing _____.
Respuesta
-
can be any number
-
must be a multiple of 256
-
must be a power of 2
-
none
Pregunta 18
Pregunta
Which address could be the beginning address of a block of 32 classless addresses?
Respuesta
-
2.4.6.5
-
2.4.6.16
-
2.4.6.64
-
none
Pregunta 19
Pregunta
An organization is granted a block: one address is 2.2.2.64/25. If the subnet prefix length is /28 what is the maximum number of subnets?
Respuesta
-
2
-
4
-
8
-
16
-
32
-
64
Pregunta 20
Pregunta
in a _____ delivery, both the deliverer of the ip packet and the destination are on the same network.
Respuesta
-
connection-oriented
-
connnectionless
-
direct
-
indirect
-
virtual
Pregunta 21
Pregunta
in ______ delivery, the deliverer of the ip packet and the destination are on different networks.
Respuesta
-
connection-oriented
-
connectionless
-
direct
-
indirect
Pregunta 22
Pregunta
IN _____ forwarding, the full ip address of a destination is given in the routing table
Respuesta
-
defualt
-
host specific
-
next hop
-
network specific
Pregunta 23
Pregunta
In _______ forwarding, the mask and destination address are both 0.0.0.0 in the routing table.
Respuesta
-
deafualt
-
host specific
-
next-hop
-
network specific
Pregunta 24
Pregunta
in ______ forwarding the destination address is a network address in the routing table
Respuesta
-
default
-
host specific
-
next hop
-
network specific
Pregunta 25
Pregunta
In ______ forwarding, the routing table holds the address of just the next hop instead of complete route info.
Respuesta
-
default
-
host specific
-
next hop
-
network specific
Pregunta 26
Pregunta
in classsless addressing, we need routing table with atleast ______ columns
Respuesta
-
3
-
4
-
6
-
8
Pregunta 27
Pregunta
The principle of _______ states that the routing table is sorted from longest mask to the shortest mask.
Respuesta
-
first mask matching
-
last mask matching
-
longest mask matching
-
shortest mask matching
Pregunta 28
Pregunta
A ____ routing table contains information entered manually?
Respuesta
-
dynamic
-
hierarchical
-
static
-
virtual
Pregunta 29
Pregunta
The input and output ports of a router perform the ______ layer functions of the router
Respuesta
-
network
-
physical and data link
-
physical and network
-
transport
Pregunta 30
Pregunta
The _____ protocol is the transmission mechanism used by the tcp/ip sutie.
Respuesta
-
ARP
-
ICMP
-
IP
-
TCP
Pregunta 31
Pregunta
IP is ______ datagram protocol
Respuesta
-
connectionless
-
unreliable
-
both connectionless and unreliable
-
none
Pregunta 32
Pregunta
AN HLEN value of decimal 10 means
Respuesta
-
10 bytes in the header
-
40 bytes in the header
-
10 bytes of option
-
40 bytes of option
Pregunta 33
Pregunta
if the fragment offset has a value of 100 it means that
Respuesta
-
the datagram has not been fragmented
-
the datagram is 100 bytes in size
-
the first byte of the datagram is byte 800
-
the last byte of the datagram is byte 800
Pregunta 34
Pregunta
The ip header size is _______ bytes long.
Respuesta
-
10
-
20
-
60
-
20 to 60
Pregunta 35
Pregunta
Packets in the ip layer are called
Respuesta
-
datagrams
-
frames
-
packets
-
segments
Pregunta 36
Pregunta
When a datagram is encapsulated in a frame, the total size of the datagram must be less than the ____
Respuesta
-
MAT
-
MTA
-
MUT
-
MTU
Pregunta 37
Pregunta
The ______ module consults the MTU table to determine the packet size necessary for transsmission
Respuesta
-
forwarding
-
fragmentation
-
proccessiong
-
sizing
Pregunta 38
Pregunta
To find the physical address of the exiting-point router, ATM uses the service of ________
Respuesta
-
ARP
-
ATMARP
-
ICMP
-
IP
Pregunta 39
Pregunta
A ______ is an ARP that acts of behalf of a set of hosts
Respuesta
-
ARP
-
DHCP
-
RARP
-
Proxy ARP
Pregunta 40
Pregunta
in _____ mapping , a table associating a logical address with a physical address is updated manually
Respuesta
-
dyanmic
-
static
-
logical
-
physical
Pregunta 41
Pregunta
A ______ is a local address. Its jurisdiction is over a local network
Respuesta
-
logical address
-
physical address
-
port
-
static address
Pregunta 42
Pregunta
ICMP is a ______ layer protocol
Respuesta
-
application
-
data link
-
network
-
transport
Pregunta 43
Pregunta
for the purposes of routing, the internet is divided into
Respuesta
-
autonomous networks
-
autonomous systems
-
wide area networks
-
none
Pregunta 44
Pregunta
routing between autonomous systems is referred to as _______ routing.
Respuesta
-
border
-
interdomain
-
intradomain
-
out of domain
Pregunta 45
Pregunta
IN _____ routing, the least cost route between any two nodes is the route with the minumum distance
Respuesta
-
distance vector
-
link state
-
path vector
Pregunta 46
Pregunta
IN _____, each node maintains a vector minimum distance to everynode
Respuesta
-
distance vector
-
link state
-
path vector
Pregunta 47
Pregunta
in RIP, the ____ timer controls the advertising of regular update messages.
Respuesta
-
expiration
-
garbage collection
-
periodic
Pregunta 48
Pregunta
RIP uses the services of
Respuesta
-
ARP
-
Ethernet
-
IP
-
UDP
Pregunta 49
Pregunta
The _____ routing uses the dijkstra algorithm to build a routing table
Respuesta
-
distance vector
-
link state
-
path vector
Pregunta 50
Pregunta
in _____ rotuing, we assume that there is one node in each autonomous system that acts on behalf of the the entire system
Respuesta
-
distance vector
-
link state
-
path vector
Pregunta 51
Pregunta
The ___ protocol allows the admin to assign cost, called the metric to each route
Respuesta
-
BGP
-
OSPF
-
RIP
Pregunta 52
Pregunta
BGP uses the services of
Respuesta
-
ARP
-
IP
-
ethernet
-
UDP
-
TCP
Pregunta 53
Pregunta
The main problem that must be solved in providing mobile communication using the ip protocol is
Respuesta
-
addressing
-
connecting
-
forwarding
-
none
Pregunta 54
Pregunta
The original IP addressing was based on the assumption that a host is ______
Respuesta
-
stationary
-
mobile
-
moving
Pregunta 55
Pregunta
When a mobile host acts as a foreign agent, the care of address is called a ____ care of address
Respuesta
-
co-located
-
commmon
-
shared
Pregunta 56
Pregunta
A registration request or reply is sent by ____ using a well known port 434
Respuesta
-
IP
-
TCP
-
UDP
Pregunta 57
Pregunta
one to many communication between one source and specific group of hosts is classified as a ______ communications
Respuesta
-
broadcast
-
multicast
-
unicast
Pregunta 58
Pregunta
IN ______, the router forwards the received packet through only one of its interfaces
Respuesta
-
broadcast
-
multicast
-
unicast
Pregunta 59
Pregunta
emulation of ____ through _____ is not efficient and may create long delays
Respuesta
-
broadcasting:multicasting
-
multicasting: multiple unicasting
-
unicasting: multiple unicasting
Pregunta 60
Pregunta
in multicast routing, each involved router needs to construct a ___ path tree for each group
Respuesta
-
average
-
longest
-
shortest
Pregunta 61
Pregunta
In the group-shared tree approach, ________ is/are involved in mulitcasting
Respuesta
-
all routers
-
only some routers
-
only the core router
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.