jdi na vlastní test/obsah stránky
to identify which switch ports should receive or forward the segmentto determine which Layer 3 protocol should be used to encapsulate the datato enable a receiving host to forward the data to the appropriate applicationto allow the receiving host to assemble the packet in the proper orderto indicate the correct router interface that should be used to forward a segment
to identify which switch ports should receive or forward the segment
to determine which Layer 3 protocol should be used to encapsulate the data
to enable a receiving host to forward the data to the appropriate application
to allow the receiving host to assemble the packet in the proper order
to indicate the correct router interface that should be used to forward a segment
network layerdata link layerpresentation layerphysical layer
network layer
data link layer
presentation layer
physical layer
networkphysicaltransportdata linksession
network
physical
transport
data link
session
crossoverstraight-throughrolloverconsole
crossover
straight-through
rollover
console
the bandwidth of the WAN connection to the Internetthe type of traffic that is crossing the networkthe reliability of the gigabit Ethernet infrastructure of the backbonethe amount of traffic that is currently crossing the networkthe sophistication of the encapsulation method applied to the datathe latency that is created by the number of network devices that the data is crossing
the bandwidth of the WAN connection to the Internet
the type of traffic that is crossing the network
the reliability of the gigabit Ethernet infrastructure of the backbone
the amount of traffic that is currently crossing the network
the sophistication of the encapsulation method applied to the data
the latency that is created by the number of network devices that the data is crossing
EthernetHTTPTCPIP
Ethernet
HTTP
TCP
IP
There is connectivity between this device and the device at 192.168.100.1.The average transmission time between the two hosts is 2 milliseconds.There are 4 hops b**etween this device and the device at 192.168.100.1.This host does not have a default gateway configured.The connectivity between these two hosts allows for videoconferencing calls.
There is connectivity between this device and the device at 192.168.100.1.
The average transmission time between the two hosts is 2 milliseconds.
There are 4 hops b**etween this device and the device at 192.168.100.1.
This host does not have a default gateway configured.
The connectivity between these two hosts allows for videoconferencing calls.
building a routing table that is based on the first IP address in the frame headerforwarding frames with unknown destination IP addresses to the default gatewayusing the source MAC addresses of frames to build and maintain a MAC address tableexamining the destination MAC address to add new entries to the MAC address tableutilizing the MAC address table to forward frames via the destination MAC address
building a routing table that is based on the first IP address in the frame header
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
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
It defines software processes that provide services to the physical layer.It provides delimitation of data according to the physical signaling requirements of the medium.It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.It provides the logical addressing required that identifies the device.
It defines software processes that provide services to the physical layer.
It provides delimitation of data according to the physical signaling requirements of the medium.
It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.
It provides the logical addressing required that identifies the device.
It ensures a device at one layer can function at the next higher layer.It assists in protocol design.It prevents designers from creating their own model.It speeds up packet delivery.It prevents technology in one layer from affecting other layers.
It ensures a device at one layer can function at the next higher layer.
It assists in protocol design.
It prevents designers from creating their own model.
It speeds up packet delivery.
It prevents technology in one layer from affecting other layers.
ipconfignetstattracertnslookup
ipconfig
netstat
tracert
nslookup
Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables.Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.End users have the freedom to use personal tools to access information and communicate across a business network.Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.
Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables.
Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.
End users have the freedom to use personal tools to access information and communicate across a business network.
Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.
a network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all usersa network that protects confidential information from unauthorized accessa network that can expand quickly to support new users and applications without impacting the performance of the service delivered to existing usersa network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure
a network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all users
a network that protects confidential information from unauthorized access
a network that can expand quickly to support new users and applications without impacting the performance of the service delivered to existing users
a network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure
Computers use multicast transmission to request IPv4 addresses.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.The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.Multicast messages map lower layer addresses to upper layer addresses.A single packet can be sent to a group of hosts.
Computers use multicast transmission to request IPv4 addresses.
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.
The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.
Multicast messages map lower layer addresses to upper layer addresses.
A single packet can be sent to a group of hosts.
It will strip off the data-link frame to check the destination IP address.It will remove the frame from the media.It will forward the frame to the next host.It will discard the frame.
It will strip off the data-link frame to check the destination IP address.
It will remove the frame from the media.
It will forward the frame to the next host.
It will discard the frame.
UDP provides sophisticated flow control mechanisms.UDP relies on application layer protocols for error detection.UDP provides basic connectionless transport layer functions.UDP is a low overhead protocol that does not provide sequencing or flow control mechanisms.UDP provides connection-oriented, fast transport of data at Layer 3.UDP relies on IP for error detection and recovery.
UDP provides sophisticated flow control mechanisms.
UDP relies on application layer protocols for error detection.
UDP provides basic connectionless transport layer functions.
UDP is a low overhead protocol that does not provide sequencing or flow control mechanisms.
UDP provides connection-oriented, fast transport of data at Layer 3.
UDP relies on IP for error detection and recovery.
64.104.78.22710.15.250.5198.133.219.17192.15.301.240192.168.1.245192.15.301.240128.107.12.117
64.104.78.227
10.15.250.5
198.133.219.17
192.15.301.240
192.168.1.245
128.107.12.117
255.255.255.0255.255.255.128255.255.255.224255.255.255.240
255.255.255.0
255.255.255.128
255.255.255.224
255.255.255.240
an SSH connectionan AUX connectiona Telnet connectiona console connection
an SSH connection
an AUX connection
a Telnet connection
a console connection
to identify the host address of the destination hostto identify the network address of the destination networkto identify faulty framesto identify the broadcast address of the destination network
to identify the host address of the destination host
to identify the network address of the destination network
to identify faulty frames
to identify the broadcast address of the destination network
The administrator will be presented with the R1> prompt.The administrator will be required to enter Cisco789.The administrator will be required to enter Cisco234.The administrator will be required to enter Cisco123.
The administrator will be presented with the R1> prompt.
The administrator will be required to enter Cisco789.
The administrator will be required to enter Cisco234.
The administrator will be required to enter Cisco123.
2001::abcd:0:12001:0000:abcd::12001:0:0:abcd::12001:0:abcd::12001::abcd::1
2001::abcd:0:1
2001:0000:abcd::1
2001:0:0:abcd::1
2001:0:abcd::1
2001::abcd::1
198.51.100.201192.0.2.199209.165.201.223203.0.113.211
198.51.100.201
192.0.2.199
209.165.201.223
203.0.113.211
malware that was written to look like a video gamemalware that requires manual user intervention to spread between systemsmalware that can automatically spread from one system to another by exploiting a vulnerability in the targetmalware that attaches itself to a legitimate program and spreads to other programs when launched
malware that was written to look like a video game
malware that requires manual user intervention to spread between systems
malware that can automatically spread from one system to another by exploiting a vulnerability in the target
malware that attaches itself to a legitimate program and spreads to other programs when launched
woven copper braid or metallic foilcancellationcladdingimmunity to electrical hazards
woven copper braid or metallic foil
cancellation
cladding
immunity to electrical hazards
to identify missing segments at the destinationto limit the number of segments that can be sent out of an interface at one timeto reassemble the segments at the remote locationto determine if the packet changed during transitto specify the order in which the segments travel from source to destination
to identify missing segments at the destination
to limit the number of segments that can be sent out of an interface at one time
to reassemble the segments at the remote location
to determine if the packet changed during transit
to specify the order in which the segments travel from source to destination
on as many different network segments as possibleonly at the edge of the networkbetween hosts and the default gatewayonly on the busiest network segment
on as many different network segments as possible
only at the edge of the network
between hosts and the default gateway
only on the busiest network segment
FDEE::/7FEC0::/10FE80::/10FF00::/8
FDEE::/7
FEC0::/10
FE80::/10
FF00::/8
255.255.255.0255.255.255.252255.255.255.240255.255.255.248
255.255.255.252
255.255.255.248
A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network.A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.
A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network.
A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.
A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.
A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.
It provides dedicated firewall services.It provides the intrusion protection services for the device.It interfaces between the users and the kernel.It interacts with the device hardware.
It provides dedicated firewall services.
It provides the intrusion protection services for the device.
It interfaces between the users and the kernel.
It interacts with the device hardware.
linevtyinsecretinletmeinlineconin
linevtyin
secretin
letmein
lineconin
when a faster delivery mechanism is neededwhen applications need to guarantee that a packet arrives intact, in sequence, and unduplicatedwhen destination port numbers are dynamicwhen delivery overhead is not an issuewhen applications do not need to guarantee delivery of the data
when a faster delivery mechanism is needed
when applications need to guarantee that a packet arrives intact, in sequence, and unduplicated
when destination port numbers are dynamic
when delivery overhead is not an issue
when applications do not need to guarantee delivery of the data
to store the routing tableto store the ARP tableto retain contents when power is removedto store the startup configuration fileto contain the running configuration file
to store the routing table
to store the ARP table
to retain contents when power is removed
to store the startup configuration file
to contain the running configuration file
Bits are returned, rather than borrowed, to create additional subnets.Each subnet is the same size.The size of each subnet may be different, depending on requirements.Subnets may only be subnetted one additional time.
Bits are returned, rather than borrowed, to create additional subnets.
Each subnet is the same size.
The size of each subnet may be different, depending on requirements.
Subnets may only be subnetted one additional time.
partial meshmeshpoint-to-pointhub and spoke
partial mesh
mesh
point-to-point
hub and spoke
CSMA/CDCSMA/CApriority orderingtoken passing
CSMA/CD
CSMA/CA
priority ordering
token passing
sliding windowsocket pairtwo-way handshakethree-way handshake
sliding window
socket pair
two-way handshake
three-way handshake
loopbackmulticastglobal unicastlink-local
loopback
multicast
global unicast
link-local
compressionencryptionaddressingsession controlauthentication
compression
encryption
addressing
session control
authentication
to exit to a different configuration modeto allow the user to complete the commandto interrupt the ping processto restart the ping process
to exit to a different configuration mode
to allow the user to complete the command
to interrupt the ping process
to restart the ping process
192.168.1.32/28192.168.1.32/27192.168.1.64/29192.168.1.64/26
192.168.1.32/28
192.168.1.32/27
192.168.1.64/29
192.168.1.64/26
127.16.0.0/1264.100.0.0/1410.0.0.0/8192.168.0.0/16192.31.7.0/24172.16.0.0/12
127.16.0.0/12
64.100.0.0/14
10.0.0.0/8
192.168.0.0/16
192.31.7.0/24
172.16.0.0/12
fragment-free switchingfast-forward switchingcut-through switchingstore-and-forward switching
fragment-free switching
fast-forward switching
cut-through switching
store-and-forward switching
social networking without the Internetresource sharing without a dedicated servernetwork printing using a print serverwireless networking
social networking without the Internet
resource sharing without a dedicated server
network printing using a print server
wireless networking
the destination IP addressthe destination port numberthe source port numberthe source IP address
the destination IP address
the destination port number
the source port number
the source IP address
It encourages competition and promotes choices.A company can monopolize the market.The protocol can only be run on equipment from a specific vendor.An open standard protocol is not controlled or regulated by standards organizations.
It encourages competition and promotes choices.
A company can monopolize the market.
The protocol can only be run on equipment from a specific vendor.
An open standard protocol is not controlled or regulated by standards organizations.
destination MAC address to a destination IPv4 addressdestination MAC address to the source IPv4 addressdestination IPv4 address to the source MAC addressdestination IPv4 address to the destination host name
destination MAC address to a destination IPv4 address
destination MAC address to the source IPv4 address
destination IPv4 address to the source MAC address
destination IPv4 address to the destination host name
192.168.10.224192.168.10.192192.168.10.240192.168.10.0192.168.10.128
192.168.10.224
192.168.10.192
192.168.10.240
192.168.10.0
192.168.10.128
2541906219264
254
190
62
192
64
255.255.255.192255.255.255.0255.255.255.128255.255.255.224255.255.255.240
255.255.255.192
It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.It translates private IPv6 addresses into public IPv6 addresses.It enables companies to use IPv6 unique local addresses in the network.It converts IPv6 packets into IPv4 packets.It converts the 48-bit MAC address into a 64-bit host address that can be used for automatic host addressing.
It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.
It translates private IPv6 addresses into public IPv6 addresses.
It enables companies to use IPv6 unique local addresses in the network.
It converts IPv6 packets into IPv4 packets.
It converts the 48-bit MAC address into a 64-bit host address that can be used for automatic host addressing.
source and destination application protocolsource and destination IP addresssource and destination port numbersource and destination MAC
source and destination application protocol
source and destination IP address
source and destination port number
source and destination MAC
segmentbitspacketframedata
segment
bits
packet
frame
data
store-and-forward switchingQOS switchingfragment-free switchingCRC switchingfast-forward switching
QOS switching
CRC switching
172.168.10.99AA:AA:AA:AA:AA:AACC:CC:CC:CC:CC:CCDD:DD:DD:DD:DD:DDBB:BB:BB:BB:BB:BB172.168.10.65
172.168.10.99
AA:AA:AA:AA:AA:AA
CC:CC:CC:CC:CC:CC
DD:DD:DD:DD:DD:DD
BB:BB:BB:BB:BB:BB
172.168.10.65
DNS addressdefault gateway addresshost IP addresssubnet mask
DNS address
default gateway address
host IP address
subnet mask
default window size3-way handshakeuse of checksumconnectionless communicationability to to carry digitized voiceport numbering
default window size
3-way handshake
use of checksum
connectionless communication
ability to to carry digitized voice
port numbering
The interface is shutdown and must be enabled before the switch will accept the IP address.The subnet mask information is incorrect.The command syntax is wrong.The command is being entered from the wrong mode of operation.
The interface is shutdown and must be enabled before the switch will accept the IP address.
The subnet mask information is incorrect.
The command syntax is wrong.
The command is being entered from the wrong mode of operation.
destination and source port numbersdestination and source logical network addressesdestination and source physical addressestiming and synchronization
destination and source port numbers
destination and source logical network addresses
destination and source physical addresses
timing and synchronization
It is not affected by EMI or RFI.Each pair of cables is wrapped in metallic foil.It combines the technique of cancellation, shielding, and twisting to protect data.It typically contains 4 pairs of fiber-optic wires.It is more expensive than UTP cabling is.
It is not affected by EMI or RFI.
Each pair of cables is wrapped in metallic foil.
It combines the technique of cancellation, shielding, and twisting to protect data.
It typically contains 4 pairs of fiber-optic wires.
It is more expensive than UTP cabling is.
session control using port numbersplacement and removal of frames from the mediadetection of errors through CRC calculationsdata link layer addressingdelimiting groups of bits into frameserror correction through a collision detection method
session control using port numbers
placement and removal of frames from the media
detection of errors through CRC calculations
data link layer addressing
delimiting groups of bits into frames
error correction through a collision detection method
DHCPICMPFTPSNMPHTTP
DHCP
ICMP
FTP
SNMP
the type of traffic that is crossing the networkthe sophistication of the encapsulation method applied to the datathe amount of traffic that is currently crossing the networkthe bandwidth of the WAN connection to the Internetthe latency that is created by the number of network devices that the data is crossingthe reliability of the gigabit Ethernet infrastructure of the backbone
.comroot.cisco.comcisco.comwww.cisco.com
.com
root.cisco.com
cisco.com
www.cisco.com
The configuration is permanent and nothing changes.The address lease is automatically renewed until the PC is returned.The address is returned to the pool for reuse when the lease expires.The configuration is held by the server to be reissued when the PC is returned.
The configuration is permanent and nothing changes.
The address lease is automatically renewed until the PC is returned.
The address is returned to the pool for reuse when the lease expires.
The configuration is held by the server to be reissued when the PC is returned.
console 0VLAN 1vty 0FastEthernet0/1
console 0
VLAN 1
vty 0
FastEthernet0/1
audio conference, financial transactions, web pagefinancial transactions, audio conference, web pagefinancial transactions, web page, audio conferenceaudio conference, web page, financial transactions
audio conference, financial transactions, web page
financial transactions, audio conference, web page
financial transactions, web page, audio conference
audio conference, web page, financial transactions
routing packets toward the destinationcollision detectionplacement of frames on the mediaencapsulating PDUs from the transport layerperforming error detection
routing packets toward the destination
collision detection
placement of frames on the media
encapsulating PDUs from the transport layer
performing error detection
2625416148
2
6
16
14
8
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