Fiszki
neverminder
Test w formie fiszek
Ilość pytań: 124
Rozwiązywany: 2785 razy
What is a characteristic of the LLC sublayer?
It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.
It provides delimitation of data according to the physical signaling requirements of the medium.
It provides the logical addressing required that identifies the device.
It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.
A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?
partial mesh
point-to-point
hub and spoke
mesh
partial mesh
What method is used to manage contention-based access on a wireless network?
priority ordering
CSMA/CA
CSMA/CD
CSMA/CA
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
error correction through a collision detection method
session control using port numbers
placement and removal of frames from the media
data link layer addressing
conversion of bits into data signals
delimiting groups of bits into frames
detection of errors through CRC calculations
data link layer addressing
delimiting groups of bits into frames
detection of errors through CRC calculations
What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?
It will discard the frame
It will remove the frame from the media
It will forward the frame to the next host.
It will strip off the data-link frame to check the destination IP address.
It will discard the frame
What are two examples of the cut-through switching method? (Choose two.)
QOS switching
fast-forward switching
fragment-free switching
store-and-forward switching
CRC switching
fast-forward switching
fragment-free switching
What are two actions performed by a Cisco switch? (Choose two.)
examining the destination MAC address to add new entries to the MAC address table
utilizing the MAC address table to forward frames via the destination MAC address
forwarding frames with unknown destination IP addresses to the default gateway
using the source MAC addresses of frames to build and maintain a MAC address table
building a routing table that is based on the first IP address in the frame header
utilizing the MAC address table to forward frames via the destination MAC address
using the source MAC addresses of frames to build and maintain a MAC address table
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
cut-through switching
store-and-forward switching
fast-forward switching
fragment-free switching
store-and-forward switching
Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?
pytanie 29
What addresses are mapped by ARP?
destination IPv4 address to the source MAC address
destination IPv4 address to the destination host name
destination MAC address to a destination IPv4 address
destination MAC address to a destination IPv4 address
What information is added during encapsulation at OSI Layer 3?
source and destination MAC
source and destination IP address
source and destination application protocol
source and destination IP address
What are two services provided by the OSI network layer? (Choose two.)
routing packets toward the destination
encapsulating PDUs from the transport layer
performing error detection
collision detection
routing packets toward the destination
encapsulating PDUs from the transport layer
Refer to the exhibit. The network administrator for a small advertising company has chosen to use the 192.168.5.96/27 network for internal LAN addressing. As shown in the exhibit, a static IP address is assigned to the company web server. However, the web server cannot access the Internet. The administrator verifies that local workstations with IP addresses that are assigned by a DHCP server can access the Internet, and the web server is able to ping local workstations. Which component is incorrectly configured?
pytanie 33
Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?
to identify the broadcast address of the destination network
to identify faulty frames
to identify the network address of the destination network
to identify the network address of the destination network
What are two functions of NVRAM? (Choose two.)
to retain contents when power is removed
to store the routing table
to contain the running configuration file
to store the ARP table
to store the startup configuration file
to retain contents when power is removed
to store the startup configuration file
Refer to the exhibit. What will be the result of entering this configuration the next time a network administrator connects a console cable to the router and no additional commands have been entered?
pytanie 36
What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?
198.51.100.201
209.165.201.223
192.0.2.199
203.0.113.211
203.0.113.211
What are three characteristics of multicast transmission? (Choose three.)
Computers use multicast transmission to request IPv4 addresses.
Multicast transmission can be used by routers to exchange routing information.
Multicast messages map lower layer addresses to upper layer addresses.
The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.
Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255
A single packet can be sent to a group of hosts.
Multicast transmission can be used by routers to exchange routing information.
Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255
A single packet can be sent to a group of hosts.
What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)
10.0.0.0/8
127.16.0.0/12
192.31.7.0/24
172.16.0.0/12
192.168.0.0/16
64.100.0.0/14
10.0.0.0/8
172.16.0.0/12
192.168.0.0/16
What purpose does NAT64 serve in IPv6?
It enables companies to use IPv6 unique local addresses in the network
It converts the 48-bit MAC address into a 64-bit host address that can be used for automatic host addressing.
It converts IPv6 packets into IPv4 packets.
It converts IPv6 packets into IPv4 packets.