jdi na vlastní test/obsah stránky
letmeinsecretinlineconinlinevtyin
letmein
secretin
lineconin
linevtyin
socket pairsliding windowtwo-way handshakethree-way handshake
socket pair
sliding window
two-way handshake
three-way handshake
port numberingability to to carry digitized voiceuse of checksumdefault window sizeconnectionless communication3-way handshake
port numbering
ability to to carry digitized voice
use of checksum
default window size
connectionless communication
3-way handshake
on as many different network segments as possiblebetween hosts and the default gatewayonly at the edge of the networkonly on the busiest network segment
on as many different network segments as possible
between hosts and the default gateway
only at the edge of the network
only on the busiest network segment
root.cisco.comcisco.com.comwww.cisco.com
root.cisco.com
cisco.com
.com
www.cisco.com
a console connectiona Telnet connectionan SSH connectionan AUX connection
a console connection
a Telnet connection
an SSH connection
an AUX connection
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.
It provides dedicated firewall services.
It provides the intrusion protection services for the device.
It interfaces between the users and the kernel.
resource sharing without a dedicated serversocial networking without the Internetnetwork printing using a print serverwireless networking
resource sharing without a dedicated server
social networking without the Internet
network printing using a print server
wireless networking
to identify missing segments at the destinationto limit the number of segments that can be sent out of an interface at one timeto determine if the packet changed during transitto specify the order in which the segments travel from source to destinationto reassemble the segments at the remote location
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 determine if the packet changed during transit
to specify the order in which the segments travel from source to destination
to reassemble the segments at the remote location
cancellationcladdingwoven copper braid or metallic foilimmunity to electrical hazards
cancellation
cladding
woven copper braid or metallic foil
immunity to electrical hazards
crossoverrolloverconsolestraight-through
crossover
rollover
console
straight-through
to identify faulty framesto identify the broadcast address of the destination networkto identify the network address of the destination networkto identify the host address of the destination host
to identify faulty frames
to identify the broadcast address of the destination network
to identify the network address of the destination network
to identify the host address of the destination host
It translates private IPv6 addresses into public IPv6 addresses.It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.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 translates private IPv6 addresses into public IPv6 addresses.
It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.
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.
examining the destination MAC address to add new entries to the MAC address tableforwarding frames with unknown destination IP addresses to the default gatewaybuilding a routing table that is based on the first IP address in the frame headerusing the source MAC addresses of frames to build and maintain a MAC address tableutilizing the MAC address table to forward frames via the destination MAC address
examining the destination MAC address to add new entries to the MAC address table
forwarding frames with unknown destination IP addresses to the default gateway
building a routing table that is based on the first IP address in the frame header
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
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 defines software processes that provide services to the physical layer.
host IP addressdefault gateway addressDNS addresssubnet mask
host IP address
default gateway address
DNS address
subnet mask
when applications need to guarantee that a packet arrives intact, in sequence, and unduplicatedwhen delivery overhead is not an issuewhen destination port numbers are dynamicwhen applications do not need to guarantee delivery of the datawhen a faster delivery mechanism is needed
when applications need to guarantee that a packet arrives intact, in sequence, and unduplicated
when delivery overhead is not an issue
when destination port numbers are dynamic
when applications do not need to guarantee delivery of the data
when a faster delivery mechanism is needed
audio conference, financial transactions, web pageaudio conference, web page, financial transactionsfinancial transactions, audio conference, web pagefinancial transactions, web page, audio conference
audio conference, financial transactions, web page
audio conference, web page, financial transactions
financial transactions, audio conference, web page
financial transactions, web page, audio conference
128.107.12.11710.15.250.5198.133.219.17192.168.1.245192.15.301.24064.104.78.227192.15.301.240
128.107.12.117
10.15.250.5
198.133.219.17
192.168.1.245
192.15.301.240
64.104.78.227
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
255.255.255.0255.255.255.240255.255.255.128255.255.255.224
255.255.255.0
255.255.255.240
255.255.255.128
255.255.255.224
CC:CC:CC:CC:CC:CCDD:DD:DD:DD:DD:DD172.168.10.65BB:BB:BB:BB:BB:BB172.168.10.99AA:AA:AA:AA:AA:AA
CC:CC:CC:CC:CC:CC
DD:DD:DD:DD:DD:DD
172.168.10.65
BB:BB:BB:BB:BB:BB
172.168.10.99
AA:AA:AA:AA:AA:AA
link-localglobal unicastloopbackmulticast
link-local
global unicast
loopback
multicast
Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.Multicast transmission can be used by routers to exchange routing information.Multicast messages map lower layer addresses to upper layer addresses.A single packet can be sent to a group of hosts.The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.Computers use multicast transmission to request IPv4 addresses.
Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.
Multicast transmission can be used by routers to exchange routing information.
Multicast messages map lower layer addresses to upper layer addresses.
A single packet can be sent to a group of hosts.
The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.
Computers use multicast transmission to request IPv4 addresses.
The administrator will be presented with the R1> prompt.The administrator will be required to enter Cisco234.The administrator will be required to enter Cisco789.The administrator will be required to enter Cisco123.
The administrator will be presented with the R1> prompt.
The administrator will be required to enter Cisco234.
The administrator will be required to enter Cisco789.
The administrator will be required to enter Cisco123.
destination MAC address to a destination IPv4 addressdestination IPv4 address to the destination host namedestination IPv4 address to the source MAC addressdestination MAC address to the source IPv4 address
destination MAC address to a destination IPv4 address
destination IPv4 address to the destination host name
destination IPv4 address to the source MAC address
destination MAC address to the source IPv4 address
HTTPEthernetTCPIP
HTTP
Ethernet
TCP
IP
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.
token passingCSMA/CACSMA/CDpriority ordering
token passing
CSMA/CA
CSMA/CD
priority ordering
store-and-forward switchingfast-forward switchingfragment-free switchingcut-through switching
store-and-forward switching
fast-forward switching
fragment-free switching
cut-through switching
FDEE::/7FF00::/8FE80::/10FEC0::/10
FDEE::/7
FF00::/8
FE80::/10
FEC0::/10
framepacketdatasegmentbits
frame
packet
data
segment
bits
An open standard protocol is not controlled or regulated by standards organizations.It encourages competition and promotes choices.The protocol can only be run on equipment from a specific vendor.A company can monopolize the market.
An open standard protocol is not controlled or regulated by standards organizations.
It encourages competition and promotes choices.
The protocol can only be run on equipment from a specific vendor.
A company can monopolize the market.
encapsulating PDUs from the transport layerperforming error detectionrouting packets toward the destinationplacement of frames on the mediacollision detection
encapsulating PDUs from the transport layer
performing error detection
routing packets toward the destination
placement of frames on the media
collision detection
192.168.1.64/26192.168.1.32/28192.168.1.64/29192.168.1.32/27
192.168.1.64/26
192.168.1.32/28
192.168.1.64/29
192.168.1.32/27
It prevents technology in one layer from affecting other layers.It speeds up packet delivery.It prevents designers from creating their own model.It ensures a device at one layer can function at the next higher layer.It assists in protocol design.
It prevents technology in one layer from affecting other layers.
It speeds up packet delivery.
It prevents designers from creating their own model.
It ensures a device at one layer can function at the next higher layer.
It assists in protocol design.
the destination IP addressthe source IP addressthe source port numberthe destination port number
the destination IP address
the source IP address
the source port number
the destination port number
FastEthernet0/1console 0vty 0VLAN 1
FastEthernet0/1
console 0
vty 0
VLAN 1
source and destination application protocolsource and destination IP addresssource and destination MACsource and destination port number
source and destination application protocol
source and destination IP address
source and destination MAC
source and destination port number
The connectivity between these two hosts allows for videoconferencing calls.There are 4 hops b**etween this device and the device at 192.168.100.1.The average transmission time between the two hosts is 2 milliseconds.This host does not have a default gateway configured.There is connectivity between this device and the device at 192.168.100.1.
The connectivity between these two hosts allows for videoconferencing calls.
There are 4 hops b**etween this device and the device at 192.168.100.1.
The average transmission time between the two hosts is 2 milliseconds.
This host does not have a default gateway configured.
There is connectivity between this device and the device at 192.168.100.1.
HTTPDHCPFTPSNMPICMP
DHCP
FTP
SNMP
ICMP
netstatnslookuptracertipconfig
netstat
nslookup
tracert
ipconfig
destination and source logical network addressestiming and synchronizationdestination and source physical addressesdestination and source port numbers
destination and source logical network addresses
timing and synchronization
destination and source physical addresses
destination and source port numbers
It is not affected by EMI or RFI.It is more expensive than UTP cabling is.It combines the technique of cancellation, shielding, and twisting to protect data.Each pair of cables is wrapped in metallic foil.It typically contains 4 pairs of fiber-optic wires.
It is not affected by EMI or RFI.
It is more expensive than UTP cabling is.
It combines the technique of cancellation, shielding, and twisting to protect data.
Each pair of cables is wrapped in metallic foil.
It typically contains 4 pairs of fiber-optic wires.
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.
255.255.255.0255.255.255.252255.255.255.248255.255.255.240
255.255.255.252
255.255.255.248
2001:0000:abcd::12001::abcd:0:12001::abcd::12001:0:0:abcd::12001:0:abcd::1
2001:0000:abcd::1
2001::abcd:0:1
2001::abcd::1
2001:0:0:abcd::1
2001:0:abcd::1
malware that was written to look like a video gamemalware 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 launchedmalware that requires manual user intervention to spread between systems
malware that was written to look like a video game
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
malware that requires manual user intervention to spread between systems
64.100.0.0/14172.16.0.0/12127.16.0.0/1210.0.0.0/8192.31.7.0/24192.168.0.0/16
64.100.0.0/14
172.16.0.0/12
127.16.0.0/12
10.0.0.0/8
192.31.7.0/24
192.168.0.0/16
the reliability of the gigabit Ethernet infrastructure of the backbonethe sophistication of the encapsulation method applied to the datathe type of traffic that is crossing the networkthe 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 crossing
the reliability of the gigabit Ethernet infrastructure of the backbone
the sophistication of the encapsulation method applied to the data
the type of traffic that is crossing the network
the amount of traffic that is currently crossing the network
the bandwidth of the WAN connection to the Internet
the latency that is created by the number of network devices that the data is crossing
the reliability of the gigabit Ethernet infrastructure of the backbonethe latency that is created by the number of network devices that the data is crossingthe 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 type of traffic that is crossing the network
8614225416
8
6
14
2
254
16
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.Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.End users have the freedom to use personal tools to access information and communicate across a business network.Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.
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.
Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.
End users have the freedom to use personal tools to access information and communicate across a business network.
Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.
authenticationencryptioncompressionaddressingsession control
authentication
encryption
compression
addressing
session control
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.
to identify which switch ports should receive or forward the segmentto determine which Layer 3 protocol should be used to encapsulate the datato indicate the correct router interface that should be used to forward a segmentto allow the receiving host to assemble the packet in the proper orderto enable a receiving host to forward the data to the appropriate application
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 indicate the correct router interface that should be used to forward a segment
to allow the receiving host to assemble the packet in the proper order
to enable a receiving host to forward the data to the appropriate application
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 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 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 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 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 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.
QOS switchingfragment-free switchingCRC switchingfast-forward switchingstore-and-forward switching
QOS switching
CRC switching
2541906462192
190
64
62
192
hub and spokepoint-to-pointmeshpartial mesh
hub and spoke
point-to-point
mesh
partial mesh
209.165.201.223198.51.100.201203.0.113.211192.0.2.199
209.165.201.223
198.51.100.201
203.0.113.211
192.0.2.199
255.255.255.192255.255.255.224255.255.255.0255.255.255.128255.255.255.240
255.255.255.192
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 provides basic connectionless transport layer functions.UDP relies on IP for error detection and recovery.UDP relies on application layer protocols for error detection.UDP provides sophisticated flow control mechanisms.
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 provides basic connectionless transport layer functions.
UDP relies on IP for error detection and recovery.
UDP relies on application layer protocols for error detection.
UDP provides sophisticated flow control mechanisms.
a network that protects confidential information from unauthorized accessa network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failurea network that can expand quickly to support new users and applications without impacting the performance of the service delivered to existing usersa 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 recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure
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 supports a mechanism for managing congestion and ensuring reliable delivery of content to all users
error correction through a collision detection methoddetection of errors through CRC calculationsdelimiting groups of bits into framessession control using port numbersdata link layer addressingplacement and removal of frames from the media
error correction through a collision detection method
detection of errors through CRC calculations
delimiting groups of bits into frames
session control using port numbers
data link layer addressing
placement and removal of frames from the media
networkdata linksessionphysicaltransport
network
data link
session
physical
transport
to store the ARP tableto retain contents when power is removedto store the routing tableto store the startup configuration fileto contain the running configuration file
to store the ARP table
to retain contents when power is removed
to store the routing table
to store the startup configuration file
to contain the running configuration file
to allow the user to complete the commandto interrupt the ping processto exit to a different configuration modeto restart the ping process
to allow the user to complete the command
to interrupt the ping process
to exit to a different configuration mode
to restart the ping process
The subnet mask information is incorrect.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 command syntax is wrong.
The subnet mask information is incorrect.
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 command syntax is wrong.
network layerpresentation layerphysical layerdata link layer
network layer
presentation layer
physical layer
data link layer
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