1. Which term is
used to describe the process of placing one message format into another
format
so that the message can be delivered across the appropriate medium?
flow control
encapsulation
encoding
multicasting
access method
2.
2.
Refer to the graphic. Five PCs are connected through a hub.
If host H1 wants to reply to a
message from host H2, which statement is true?
message from host H2, which statement is true?
H1 sends a unicast message to H2, but the hub forwards it to
all devices.
H1 sends a unicast message to H2, and the hub forwards it
directly to H2.
H1 sends a broadcast message to H2, and the hub forwards it
to all devices.
H1 sends a multicast message to H2, and the hub forwards it
directly to H2.
3. Which two statements
concerning networking standards are true? (Choose two.)
adds complexity to networks
encourages vendors to create proprietary protocols
provides consistent interconnections across networks
ensures that communications work best in a single-vendor environment
simplifies new product development
4. What does the 100
mean when referencing the 100BASE-T Ethernet standard?
type of cable used
type of data transmission
speed of transmission
type of connector required
maximum length of cable allowed
5. Which address
does an NIC use when deciding whether to accept a frame?
source IP address
source MAC address
destination IP address
destination MAC address
source Ethernet address
6. Which type of
address is used in an Ethernet frame header?
logical addresses only
IP addresses only
MAC addresses only
broadcast addresses only
7. What is the
function of the FCS field in an Ethernet frame?
detects transmission errors
provides timing for transmission
contains the start of frame delimiter
indicates which protocol will receive the frame
8. What is the
purpose of logical addresses in an IP network?
They identify a specific NIC on a host device.
They are used to determine which host device accepts the
frame.
They provide vendor-specific information about the host.
They are used to determine the network that the host is
located on.
They are used by switches to make forwarding decisions.
9. Which device
accepts a message on one port and always forwards the message to all other
ports?
ports?
modem
switch
router
hub
10. Which two
networking devices are used to connect hosts to the access layer?
(Choose two.)
(Choose two.)
router
hub
switch
server
computer
11. Host A needs to
learn the MAC address of Host B, which is on the same LAN segment.
A message has been sent to all the hosts on the segment asking for the MAC address of
Host B. Host B responds with its MAC address and all other hosts disregard the request.
What protocol was used in this scenario?
A message has been sent to all the hosts on the segment asking for the MAC address of
Host B. Host B responds with its MAC address and all other hosts disregard the request.
What protocol was used in this scenario?
ARP
DHCP
DNS
WINS
12. A switch
receives a frame with a destination MAC address that is currently not in the
MAC
table. What action does the switch perform?
table. What action does the switch perform?
It drops the frame.
It sends out an ARP request looking for the MAC address.
It floods the frame out of all active ports, except the
origination port.
It returns the frame to the sender.
13. What is a
benefit of having a router within the distribution layer?
prevents collisions on a local network
keeps broadcasts contained within a local network
controls which hosts have access to the network
controls host-to-host traffic within a single local network
14.
14.
Refer to the graphic. What does the router do after it determines that a data packet from
Network 1 should be forwarded to Network 2?
It sends the data packet as it was received.
It reassembles the frame with different MAC addresses than
the original frame.
It reassembles the data packet with different IP addresses
than the original data packet.
It reassembles both the packet and the frame with different
destination IP and MAC
addresses.
addresses.
15. Which table does
a router use to make decisions about the interface through which a data
packet is to be sent?
packet is to be sent?
ARP table
routing table
network table
forwarding table
16. If the default
gateway is configured incorrectly on the host, what is the impact on
communications?
communications?
The host is unable to communicate on the local network.
The host can communicate with other hosts on the local
network, but is unable to
communicate with hosts on remote networks.
communicate with hosts on remote networks.
The host can communicate with other hosts on remote
networks, but is unable to
communicate with hosts on the local network.
communicate with hosts on the local network.
There is no impact on communications.
17. What device is
typically used as the default gateway for a computer?
a server hosted by the ISP
the router interface closest to the computer
a server managed by a central IT department
the switch interface that connects to the computer
18. What type of
route allows a router to forward packets even though its routing table contains
no specific route to the destination network?
no specific route to the destination network?
dynamic route
default route
destination route
generic route
19. Which two items
are included in a network logical map? (Choose two.)
naming scheme
IP addressing scheme
length of cable runs
physical location of networking devices
specific layout of interconnections between networking
devices and hosts
20. An integrated
router can normally perform the functions of which two other network devices?
(Choose two.)
(Choose two.)
NIC
switch
e-mail server
application server
wireless access point
21. What is a reason
for disabling simple file sharing?
It enables the user to map a remote resource with a local
drive.
It enables the user to share all files with all users and
groups.
It enables the user to share printers.
It enables the user to set more specific security access
levels.
No comments:
Post a Comment