Rabu, 17 Oktober 2012
CHAPTER - 3
1 Which two statements concerning networking standards
are true? (Choose two.)
#provides consistent interconnections across networks
#simplifies new product development
2 Which two items are included in a network logical map? (Choose two.)
#naming scheme
#IP addressing scheme
3 What is a reason for disabling simple file sharing?
#It enables the user to set more specific security access levels.
4 Which address does an NIC use when deciding whether to accept a frame?
#destination MAC address
5 If the default gateway is configured incorrectly on the host, what is the impact on communications?
#The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
6
Refer to the graphic. What does the router do after it determines that a data packet from Network 1 should be forwarded to Network 2?
#It reassembles the frame with different MAC addresses than the original frame.
7 What is the function of the FCS field in an Ethernet frame?
#detects transmission errors
8 Host A needs to learn the MAC address of Host B, which is on the same LAN segment. A message has been sent to all the hosts on the segment asking for the MAC address of Host B. Host B responds with its MAC address and all other hosts disregard the request. What protocol was used in this scenario?
#ARP
9 What is a benefit of having a router within the distribution layer?
#keeps broadcasts contained within a local network
10 Which term is used to describe the process of placing one message format into another format so that the message can be delivered across the appropriate medium?
#encapsulation
11 Which table does a router use to make decisions about the interface through which a data packet is to be sent?
#routing table
12 Which two networking devices are used to connect hosts to the access layer? (Choose two.)
#hub
#switch
13 What does the 100 mean when referencing the 100BASE-T Ethernet standard?
#speed of transmission
14 What device is typically used as the default gateway for a computer?
#the router interface closest to the computer
15
#provides consistent interconnections across networks
#simplifies new product development
2 Which two items are included in a network logical map? (Choose two.)
#naming scheme
#IP addressing scheme
3 What is a reason for disabling simple file sharing?
#It enables the user to set more specific security access levels.
4 Which address does an NIC use when deciding whether to accept a frame?
#destination MAC address
5 If the default gateway is configured incorrectly on the host, what is the impact on communications?
#The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
6
Refer to the graphic. What does the router do after it determines that a data packet from Network 1 should be forwarded to Network 2?
#It reassembles the frame with different MAC addresses than the original frame.
7 What is the function of the FCS field in an Ethernet frame?
#detects transmission errors
8 Host A needs to learn the MAC address of Host B, which is on the same LAN segment. A message has been sent to all the hosts on the segment asking for the MAC address of Host B. Host B responds with its MAC address and all other hosts disregard the request. What protocol was used in this scenario?
#ARP
9 What is a benefit of having a router within the distribution layer?
#keeps broadcasts contained within a local network
10 Which term is used to describe the process of placing one message format into another format so that the message can be delivered across the appropriate medium?
#encapsulation
11 Which table does a router use to make decisions about the interface through which a data packet is to be sent?
#routing table
12 Which two networking devices are used to connect hosts to the access layer? (Choose two.)
#hub
#switch
13 What does the 100 mean when referencing the 100BASE-T Ethernet standard?
#speed of transmission
14 What device is typically used as the default gateway for a computer?
#the router interface closest to the computer
15
Refer to the graphic. Five PCs are connected through a hub.
If host H1 wants to reply to a message from host H2, which statement is true?
#H1 sends a unicast message to H2, but the hub forwards it to all devices.
16 Which type of address is used in an Ethernet frame header?
#MAC addresses only
17 A switch receives a frame with a destination MAC address that is currently not in the MAC table. What action does the switch perform?
#It floods the frame out of all active ports, except the origination port.
18 Which device accepts a message on one port and always forwards the message to all other ports?
#hub
19 What type of route allows a router to forward packets even though its routing table contains no specific route to the destination network?
#default route
20 An integrated router can normally perform the functions of which two other network devices? (Choose two.)
#switch
#wireless access point
21 What is the purpose of logical addresses in an IP network?
#They are used to determine which host device accepts the frame. - See more at: http://ya2nx.blogspot.com/2012/03/ccna-1-chapter-3.html#sthash.Qy8ROHuF.dpuf
#H1 sends a unicast message to H2, but the hub forwards it to all devices.
16 Which type of address is used in an Ethernet frame header?
#MAC addresses only
17 A switch receives a frame with a destination MAC address that is currently not in the MAC table. What action does the switch perform?
#It floods the frame out of all active ports, except the origination port.
18 Which device accepts a message on one port and always forwards the message to all other ports?
#hub
19 What type of route allows a router to forward packets even though its routing table contains no specific route to the destination network?
#default route
20 An integrated router can normally perform the functions of which two other network devices? (Choose two.)
#switch
#wireless access point
21 What is the purpose of logical addresses in an IP network?
#They are used to determine which host device accepts the frame. - See more at: http://ya2nx.blogspot.com/2012/03/ccna-1-chapter-3.html#sthash.Qy8ROHuF.dpuf
