cisco 1
What is the binary representation of 0xCA?
11001010
What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?
255.255.255.192
A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices: Subnetwork A: IP phones - 10 addresses Subnetwork B: PCs - 8 addresses Subnetwork C: Printers - 2 addresses What single subnet mask would be appropriate to use for the three subnetworks?
255.255.255.240
How many usable IP addresses are available on the 192.168.1.0/27 network?
30
What are three characteristics of an SVI? (Choose three.)
It is not associated with any physical interface on a switch. It provides a means to remotely manage a switch. t is associated with VLAN1 by default.
What is the purpose of the command ping ::1?
It tests the internal configuration of an IPv6 host.
After several configuration changes are made to a router, the copy running-configuration startup-configuration command is issued. Where will the changes be stored?
NVRAM
A technician configures a switch with these commands: SwitchA(config)# interface vlan 1 SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0 SwitchA(config-if)# no shutdown What is the technician configuring?
SVI
Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?
Segments are sent from the transport layer to the internet layer.
Under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on? (Choose two.)
The frame has the broadcast address as the destination address. The destination address is unknown to the switch.
After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command?
The new configuration will be loaded if the switch is restarted.
During the encapsulation process, what occurs at the data link layer for a PC connected to an Ethernet network?
The physical address is added.
Where are Cisco IOS debug output messages sent by default?
console line
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
data link layer addressing detection of errors through CRC calculations delimiting groups of bits into frames
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
data link layer addressing detection of errors through CRC calculations delimiting groups of bits into frames
What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device?
destination and source port numbers
What are two characteristics of Ethernet MAC addresses? (Choose two.)
hey are globally unique. They are expressed as 12 hexadecimal digits.
What layer is responsible for routing messages through an internetwork in the TCP/IP model?
internet
A medium-sized business is researching available options for connecting to the Internet. The company is looking for a high speed option with dedicated, symmetric access. Which connection type should the company choose?
leased line
What type of IPv6 address is FE80::1?
link-local
Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)
network transport
Which two functions are primary functions of a router? (Choose two.)
packet forwarding path selection
What are two characteristics shared by TCP and UDP? (Choose two.)
port numbering use of checksum
What are two services provided by the OSI network layer? (Choose two.)
routing packets toward the destination encapsulating PDUs from the transport layer
What are two services provided by the OSI network layer? (Choose two.)
routing packets toward the destination encapsulating PDUs from the transport layer
What is the process of dividing a data stream into smaller pieces before transmission?
segmentation
A network technician suspects that a particular network connection between two Cisco switches is having a duplex mismatch. Which command would the technician use to see the Layer 1 and Layer 2 details of a switch port?
show interfaces
What information is added during encapsulation at OSI Layer 3?
source and destination IP address
Which type of UTP cable is used to connect a PC to a switch port?
straight-through
When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address?
subnet mask
What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?
tcp
Which command can an administrator issue on a Cisco router to send debug messages to the vty lines?
terminal monitor
What source IP address does a router use by default when the traceroute command is issued?
the IP address of the outbound interface
In computer communication, what is the purpose of message encoding?
to convert information to the appropriate form for transmission
Why are port numbers included in the TCP header of a segment?
to enable a receiving host to forward the data to the appropriate application
What are two ways that TCP uses the sequence numbers in a segment? (Choose two.)
to identify missing segments at the destination to reassemble the segments at the remote location
Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?
to identify the network address of the destination network
What are two ways that TCP uses the sequence numbers in a segment? (Choose two.)
to reassemble the segments at the remote location
What is the purpose of having a converged network?
to reduce the cost of deploying and maintaining the communication infrastructure
What are two actions performed by a Cisco switch? (Choose two.)
using the source MAC addresses of frames to build and maintain a MAC address table utilizing the MAC address table to forward frames via the destination MAC address