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49 Cards in this Set
- Front
- Back
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Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below.
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BA
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Which of the following describe interframe spacing? (Choose two.)
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the minimum interval, measured in bit-times, that any station must wait before sending another frame
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When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?
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The hosts return to a listen-before-transmit mode.
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After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data?
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any device in the collision domain whose backoff timer expires first
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Which of the following is a drawback of the CSMA/CD access method?
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Collisions can decrease network performance.
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Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?
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No collisions will occur on this link.
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Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?
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No collisions will occur on this link.
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Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?
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A random delay helps prevent the stations from experiencing another collision during the transmission.
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In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?
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Host B must wait until it is certain that Host A has completed sending its frame.
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In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?
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Host B must wait until it is certain that Host A has completed sending its frame.
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Ethernet operates at which layers of the OSI model? (Choose two.)
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Physical layer
Data-link layer |
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What does the IEEE 802.2 standard represent in Ethernet technologies?
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Logical Link Control sublayer
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Which statements correctly describe MAC addresses? (Choose three.)
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copied into RAM during system startup
contains a 3 byte OUI 6 bytes long |
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Ethernet operates at which layers of the OSI model? (Choose two.)
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Physical layer
Data-link layer |
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What does the IEEE 802.2 standard represent in Ethernet technologies?
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Logical Link Control sublayer
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Which statements correctly describe MAC addresses? (Choose three.)
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copied into RAM during system startup
contains a 3 byte OUI 6 bytes long |
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Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)
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A frame with the destination MAC address of Router_A.
A packet with the destination IP of Server_B. |
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Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)
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A frame with the destination MAC address of Router_A.
A packet with the destination IP of Server_B. |
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Host A has an IP address of 172.16.225.93, a mask of 255.255.248.0, and a default gateway of 172.16.224.1. Host A needs to send a packet to a new host whose IP is 172.16.231.78. Host A performs the ANDing operation on its address and subnet mask. What two things will occur? (Choose two.)
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Host A will get a result of 172.16.224.0 from the AND process.
Host A will broadcast an ARP request for the MAC of the host 172.16.231.78. |
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Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.)
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minimizing of collisions
increase in the throughput of communications |
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Ethernet operates at which layer of the TCP/IP network model?
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network access
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What are three functions of the upper data link sublayer in the OSI model? (Choose three.)
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identifies the network layer protocol
makes the connection with the upper layers insulates network layer protocols from changes in physical equipment |
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What three primary functions does data link layer encapsulation provide? (Choose three.)
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addressing
error detection frame delimiting |
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What are the two most commonly used media types in Ethernet networks today? (Choose two.)
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copper UTP
optical fiber |
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What is the primary purpose of ARP?
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resolve IPv4 addresses to MAC addresses
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Refer to the exhibit. Which option correctly identifies content that the frame data field may contain?
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network layer packet
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Refer to the exhibit. Which option correctly identifies content that the frame data field may contain?
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network layer packet
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Refer to the exhibit. Which network prefix will implement the IP addressing scheme for the LANs shown in the graphic?
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/27
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Which IPv4 subnetted addresses represent valid host addresses? (Choose three.)
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172.16.4.155 /26
172.16.4.193 /26 172.16.4.207 /27 |
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Which statements are true regarding IP addressing? (Choose two.)
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Private addresses are blocked from public Internet by router.
IP address 127.0.0.1 can be used for a host to direct traffic to itself. |
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Which process do routers use to determine the subnet network address based upon a given IP address and subnet mask?
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binary ANDing
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Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem?
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The default gateway is on a different subnet from the host.
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What subnet mask would a network administrator assign to a network address of 172.30.1.0 if it were possible to have up to 254 hosts?
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255.255.255.0
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Which three IP addresses are private? (Choose three.)
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10.35.66.70
192.168.99.5 172.18.88.90 |
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Given the IP address and subnet mask of 172.16.134.64 255.255.255.224, which of the following would describe this address?
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This is a network address.
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A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?
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172.16.192.160
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Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server’s properties to allow connectivity to the network?
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IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33
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Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server’s properties to allow connectivity to the network?
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IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33
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Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server’s properties to allow connectivity to the network?
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IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33
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Which of the following network devices are recommended to be assigned static IP addresses? (Choose three.)
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servers
network printers routers |
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Which of the following are features of IPv6? (Choose three.)
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larger address space
data types and classes of service authentication and encryption |
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What is the primary reason for development of IPv6?
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expanded addressing capabilities
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What two things will happen if a router receives an ICMP packet which has a TTL value of 1 and the destination host is several hops away? (Choose two.)
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The router will discard the packet.
The router will send a time exceeded message to the source host. |
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Refer to the exhibit. Why would the response shown be displayed after issuing the command ping 127.0.0.1 on a PC?
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Internet Protocol is not properly installed on the host.
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How many bits make up an IPv4 address?
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32
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What three facts are true about the network portion of an IPv4 address? (Choose three.)
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is identical for all hosts in a broadcast domain
varies in length is used to forward packets |
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What is a group of hosts called that have identical bit patterns in the high order bits of their addresses?
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a network
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What is the network address of the host 172.25.67.99 /23 in binary?
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10101100. 00011001.01000010.00000000
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Refer to the exhibit. A network administrator has to develop an IP addressing scheme that uses the 192.168.1.0 /24 address space. The network that contains the serial link has already been addressed out of a separate range. Each network will be allocated the same number of host addresses. Which network mask will be appropriate to address the remaining networks?
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255.255.255.192
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