Définitions Net+

Question 1

“This layer defines the use of a MAC address,”

Answer 1

“Data Link”

Question 2

“This layer initiates contact with the destination,”

Answer 2

“Session”

Question 3

“This layer converts signals to bits,”

Answer 3

“Physical”

Question 4

“This layer is responsible for formatting data for use by the network-aware progam,”

Answer 4

“Presentation”

Question 5

“This layer is defines what segment number will be sent or acknowledged,”

Answer 5

“Transport”

Question 6

“This layer must contain the source of IP address,”

Answer 6

“Network”

Question 7

“This layer handles raw data only,”

Answer 7

“Application”

Question 8

“Used to provide nonsecure remote access from host terminals to various server and devices,”

Answer 8

“Telnet”

Question 9

“The email is stored locally and might not synchonize if accessed from multiple locations but is available offline,”

Answer 9

“POP3”

Question 10

“Delivers administrative alerts to and from network devices,”

Answer 10

“SNMP”

Question 11

“Used to provide connectionless network services,”

Answer 11

“UDP”

Question 12

“Offers a synchonized time serive to all configured network devices,”

Answer 12

“NTP”

Question 13

“Used to resolve IP Addresses to MAC addresses for purposes of local area message delivery,”

Answer 13

“ARP”

Question 14

“Manages the initiation of VoIP phone services,”

Answer 14

“SIP”

Question 15

“Offers a secure connection from a virtual terminal to a remote devices,”

Answer 15

“SSH”

Question 16

“Provides the automatic assignment of IP addresses to host on a given network,”

Answer 16

“DHCP”

Question 17

“Provides encryption for data above the transport layer and updates the SSL protocol

Answer 17

“TLS”

Question 18

“Nonsecure client/server protocol used to retrieve data from web severs to their clients,”

Answer 18

“HTTP”

Question 19

“Used by email servers to deliver email between server systems,”

Answer 19

“SMTP”

Question 20

“Used to transfer files in a connection-oriented state,”

Answer 20

“FTP”

Question 21

“Connection-oriented delivery of upper layer datagrams using acknowledments,”

Answer 21

“TCP”

Question 22

“Network layer protocol used by programs such as ping to deliver network connection messages to requesting clients,”

Answer 22

“ICMP”

Question 23

“Offers a secure authentication of clients to web servers before delivery of requested data,”

Answer 23

“HTTPS”

Question 24

“Often used in audio/video delivery of real-time data requiring QoS and tight sequencing,”

Answer 24

“RTP”

Question 25

“Resolves fully qualifed domains names to their unique IP addresses,”

Answer 25

“DNS”

Question 26

“The email is stored on the server and can be accessed from multiple locations,”

Answer 26

“IMAP”

Question 27

“Network layer protocol that makes multicast connections for purposes of delivering mass datagrams simultaneously to groups of clients,”

Answer 27

“IGMP”

Question 28

Which OSI layer has the primary responsibility of determining the best route?

Answer 28

Network. Routing takes place on the network layer