jdi na vlastní test/obsah stránky
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.
10.0.0.0/8172.16.0.0/1264.100.0.0/14192.31.7.0/24192.168.0.0/16127.16.0.0/12
10.0.0.0/8
172.16.0.0/12
64.100.0.0/14
192.31.7.0/24
192.168.0.0/16
127.16.0.0/12
An open standard protocol is not controlled or regulated by standards organizations.The protocol can only be run on equipment from a specific vendor.It encourages competition and promotes choices.A company can monopolize the market.
An open standard protocol is not controlled or regulated by standards organizations.
The protocol can only be run on equipment from a specific vendor.
It encourages competition and promotes choices.
A company can monopolize the market.
fragment-free switchingstore-and-forward switchingQOS switchingfast-forward switchingCRC switching
fragment-free switching
store-and-forward switching
QOS switching
fast-forward switching
CRC switching
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.Computers use multicast transmission to request IPv4 addresses.A single packet can be sent to a group of hosts.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.
Computers use multicast transmission to request IPv4 addresses.
A single packet can be sent to a group of hosts.
Multicast transmission can be used by routers to exchange routing information.
Multicast messages map lower layer addresses to upper layer addresses.
192.0.2.199209.165.201.223203.0.113.211198.51.100.201
192.0.2.199
209.165.201.223
203.0.113.211
198.51.100.201
on as many different network segments as possiblebetween hosts and the default gatewayonly on the busiest network segmentonly at the edge of the network
on as many different network segments as possible
between hosts and the default gateway
only on the busiest network segment
only at the edge of the network
EthernetIPTCPHTTP
Ethernet
IP
TCP
HTTP
It will forward the frame to the next host.It will discard the frame.It will remove the frame from the media.It will strip off the data-link frame to check the destination IP address.
It will forward the frame to the next host.
It will discard the frame.
It will remove the frame from the media.
It will strip off the data-link frame to check the destination IP address.
the latency that is created by the number of network devices that the data is crossingthe amount of traffic that is currently crossing the networkthe bandwidth of the WAN connection to the Internetthe type of traffic that is crossing the networkthe sophistication of the encapsulation method applied to the datathe reliability of the gigabit Ethernet infrastructure of the backbone
the latency that is created by the number of network devices that the data is crossing
the amount of traffic that is currently crossing the network
the bandwidth of the WAN connection to the Internet
the type of traffic that is crossing the network
the sophistication of the encapsulation method applied to the data
the reliability of the gigabit Ethernet infrastructure of the backbone
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 requires manual user intervention to spread between systemsmalware 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 can automatically spread from one system to another by exploiting a vulnerability in the target
malware that requires manual user intervention to spread between systems
malware that attaches itself to a legitimate program and spreads to other programs when launched
encryptionauthenticationaddressingsession controlcompression
encryption
authentication
addressing
session control
compression
ICMPDHCPHTTPFTPSNMP
ICMP
DHCP
FTP
SNMP
to identify faulty framesto identify the network address of the destination networkto identify the host address of the destination hostto identify the broadcast address of the destination network
to identify faulty frames
to identify the network address of the destination network
to identify the host address of the destination host
to identify the broadcast address of the destination network
A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.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 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 playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.
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 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.
when a faster delivery mechanism is neededwhen applications do not need to guarantee delivery of the datawhen delivery overhead is not an issuewhen applications need to guarantee that a packet arrives intact, in sequence, and unduplicatedwhen destination port numbers are dynamic
when a faster delivery mechanism is needed
when applications do not need to guarantee delivery of the data
when delivery overhead is not an issue
when applications need to guarantee that a packet arrives intact, in sequence, and unduplicated
when destination port numbers are dynamic
source and destination IP addresssource and destination application protocolsource and destination MACsource and destination port number
source and destination IP address
source and destination application protocol
source and destination MAC
source and destination port number
172.168.10.65172.168.10.99DD:DD:DD:DD:DD:DDCC:CC:CC:CC:CC:CCBB:BB:BB:BB:BB:BBAA:AA:AA:AA:AA:AA
172.168.10.65
172.168.10.99
DD:DD:DD:DD:DD:DD
CC:CC:CC:CC:CC:CC
BB:BB:BB:BB:BB:BB
AA:AA:AA:AA:AA:AA
network layerdata link layerpresentation layerphysical layer
network layer
data link layer
presentation layer
physical layer
The administrator will be required to enter Cisco234.The administrator will be presented with the R1> prompt.The administrator will be required to enter Cisco789.The administrator will be required to enter Cisco123.
The administrator will be required to enter Cisco234.
The administrator will be presented with the R1> prompt.
The administrator will be required to enter Cisco789.
The administrator will be required to enter Cisco123.
FastEthernet0/1console 0VLAN 1vty 0
FastEthernet0/1
console 0
VLAN 1
vty 0
UDP provides basic connectionless transport layer functions.UDP provides connection-oriented, fast transport of data at Layer 3.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 relies on IP for error detection and recovery.
UDP provides basic connectionless transport layer functions.
UDP provides connection-oriented, fast transport of data at Layer 3.
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 relies on IP for error detection and recovery.
placement of frames on the mediarouting packets toward the destinationencapsulating PDUs from the transport layercollision detectionperforming error detection
placement of frames on the media
routing packets toward the destination
encapsulating PDUs from the transport layer
collision detection
performing error detection
198.133.219.1764.104.78.227192.15.301.240192.15.301.240128.107.12.117192.168.1.24510.15.250.5
198.133.219.17
64.104.78.227
192.15.301.240
128.107.12.117
192.168.1.245
10.15.250.5
ability to to carry digitized voicedefault window sizeuse of checksumport numberingconnectionless communication3-way handshake
ability to to carry digitized voice
default window size
use of checksum
port numbering
connectionless communication
3-way handshake
The address lease is automatically renewed until the PC is returned.The configuration is permanent and nothing changes.The configuration is held by the server to be reissued when the PC is returned.The address is returned to the pool for reuse when the lease expires.
The address lease is automatically renewed until the PC is returned.
The configuration is permanent and nothing changes.
The configuration is held by the server to be reissued when the PC is returned.
The address is returned to the pool for reuse when the lease expires.
the latency that is created by the number of network devices that the data is crossingthe reliability of the gigabit Ethernet infrastructure of the backbonethe bandwidth of the WAN connection to the Internetthe amount of traffic that is currently crossing the networkthe type of traffic that is crossing the networkthe sophistication of the encapsulation method applied to the data
192.168.1.32/28192.168.1.64/26192.168.1.32/27192.168.1.64/29
192.168.1.32/28
192.168.1.64/26
192.168.1.32/27
192.168.1.64/29
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 tableutilizing the MAC address table to forward frames via the destination MAC addressexamining the destination MAC address to add new entries to the MAC address table
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
utilizing 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
It is more expensive than UTP cabling is.Each pair of cables is wrapped in metallic foil.It is not affected by EMI or RFI.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.
Each pair of cables is wrapped in metallic foil.
It is not affected by EMI or RFI.
It combines the technique of cancellation, shielding, and twisting to protect data.
It typically contains 4 pairs of fiber-optic wires.
sliding windowsocket pairtwo-way handshakethree-way handshake
sliding window
socket pair
two-way handshake
three-way handshake
255.255.255.252255.255.255.0255.255.255.248255.255.255.240
255.255.255.252
255.255.255.0
255.255.255.248
255.255.255.240
a network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all usersa network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failurea 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 users
a network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all users
a network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure
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
It interacts with the device hardware.It interfaces between the users and the kernel.It provides the intrusion protection services for the device.It provides dedicated firewall services.
It interacts with the device hardware.
It interfaces between the users and the kernel.
It provides the intrusion protection services for the device.
It provides dedicated firewall services.
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.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 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.
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.
network printing using a print serverresource sharing without a dedicated serverwireless networkingsocial networking without the Internet
network printing using a print server
resource sharing without a dedicated server
wireless networking
social networking without the Internet
to allow the receiving host to assemble the packet in the proper orderto 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 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 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 indicate the correct router interface that should be used to forward a segment
to interrupt the ping processto restart the ping processto allow the user to complete the commandto exit to a different configuration mode
to interrupt the ping process
to restart the ping process
to allow the user to complete the command
to exit to a different configuration mode
audio conference, web page, financial transactionsfinancial transactions, web page, audio conferencefinancial transactions, audio conference, web pageaudio conference, financial transactions, web page
audio conference, web page, financial transactions
financial transactions, web page, audio conference
financial transactions, audio conference, web page
audio conference, financial transactions, web page
the source port numberthe source IP addressthe destination port numberthe destination IP address
the source port number
the source IP address
the destination port number
the destination IP address
cisco.comwww.cisco.comroot.cisco.com.com
cisco.com
www.cisco.com
root.cisco.com
.com
a Telnet connectiona console connectionan AUX connectionan SSH connection
a Telnet connection
a console connection
an AUX connection
an SSH connection
token passingCSMA/CACSMA/CDpriority ordering
token passing
CSMA/CA
CSMA/CD
priority ordering
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.
192.168.10.192192.168.10.128192.168.10.0192.168.10.240192.168.10.224
192.168.10.192
192.168.10.128
192.168.10.0
192.168.10.240
192.168.10.224
This host does not have a default gateway configured.The average transmission time between the two hosts is 2 milliseconds.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.
This host does not have a default gateway configured.
The average transmission time between the two hosts is 2 milliseconds.
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.
6419225462190
64
192
254
62
190
6821614254
6
8
2
16
14
Each subnet is the same size.Subnets may only be subnetted one additional time.The size of each subnet may be different, depending on requirements.Bits are returned, rather than borrowed, to create additional subnets.
Each subnet is the same size.
Subnets may only be subnetted one additional time.
The size of each subnet may be different, depending on requirements.
Bits are returned, rather than borrowed, to create additional subnets.
destination MAC address to a destination IPv4 addressdestination IPv4 address to the source MAC addressdestination MAC address to the source IPv4 addressdestination IPv4 address to the destination host name
destination MAC address to a destination IPv4 address
destination IPv4 address to the source MAC address
destination MAC address to the source IPv4 address
destination IPv4 address to the destination host name
default gateway addresssubnet maskDNS addresshost IP address
default gateway address
subnet mask
DNS address
host IP address
session control using port numbersdata link layer addressingdetection of errors through CRC calculationserror correction through a collision detection methoddelimiting groups of bits into framesplacement and removal of frames from the media
session control using port numbers
data link layer addressing
detection of errors through CRC calculations
error correction through a collision detection method
delimiting groups of bits into frames
placement and removal of frames from the media
consolerollovercrossoverstraight-through
console
rollover
crossover
straight-through
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 prevents technology in one layer from affecting other layers.It speeds up packet delivery.
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 prevents technology in one layer from affecting other layers.
It speeds up packet delivery.
partial meshpoint-to-pointhub and spokemesh
partial mesh
point-to-point
hub and spoke
mesh
sessionnetworkdata linkphysicaltransport
session
network
data link
physical
transport
255.255.255.0255.255.255.240255.255.255.224255.255.255.128
255.255.255.224
255.255.255.128
255.255.255.0255.255.255.192255.255.255.224255.255.255.240255.255.255.128
255.255.255.192
to limit the number of segments that can be sent out of an interface at one timeto identify missing segments at the destinationto determine if the packet changed during transitto reassemble the segments at the remote locationto specify the order in which the segments travel from source to destination
to limit the number of segments that can be sent out of an interface at one time
to identify missing segments at the destination
to determine if the packet changed during transit
to reassemble the segments at the remote location
to specify the order in which the segments travel from source to destination
framedatabitssegmentpacket
frame
data
bits
segment
packet
2001:0:0:abcd::12001::abcd:0:12001:0000:abcd::12001:0:abcd::12001::abcd::1
2001:0:0:abcd::1
2001::abcd:0:1
2001:0000:abcd::1
2001:0:abcd::1
2001::abcd::1
destination and source port numbersdestination and source logical network addressestiming and synchronizationdestination and source physical addresses
destination and source port numbers
destination and source logical network addresses
timing and synchronization
destination and source physical addresses
The interface is shutdown and must be enabled before the switch will accept the IP address.The subnet mask information is incorrect.The command is being entered from the wrong mode of operation.The command syntax is wrong.
The interface is shutdown and must be enabled before the switch will accept the IP address.
The subnet mask information is incorrect.
The command is being entered from the wrong mode of operation.
The command syntax is wrong.
loopbackmulticastglobal unicastlink-local
loopback
multicast
global unicast
link-local
FE80::/10FF00::/8FDEE::/7FEC0::/10
FE80::/10
FF00::/8
FDEE::/7
FEC0::/10
fragment-free switchingstore-and-forward switchingfast-forward switchingcut-through switching
cut-through switching
claddingimmunity to electrical hazardswoven copper braid or metallic foilcancellation
cladding
immunity to electrical hazards
woven copper braid or metallic foil
cancellation
linevtyinsecretinletmeinlineconin
linevtyin
secretin
letmein
lineconin
to store the routing tableto store the ARP tableto contain the running configuration fileto store the startup configuration fileto retain contents when power is removed
to store the routing table
to store the ARP table
to contain the running configuration file
to store the startup configuration file
to retain contents when power is removed
netstatipconfignslookuptracert
netstat
ipconfig
nslookup
tracert
jdi nahoru, na obsah
Sex a vztahy (17)Ano/Ne (22)Zdraví (19)Ostatní (152)Vaše testy (182)Nezařazené (53)
Uživatelské jméno
Heslo