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31 Cards in this Set
- Front
- Back
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_______ and virtual circuit networks require path setup time and cannot dynamically reroute packets should a network problem occur. |
Circuit-switched |
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What type of network is the only network that offers a dedicated path? |
Circuit-switched |
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TCP is what kind of sub-protocol? |
Connection-oriented |
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What kind of number is the address on a host where an application makes itself available to incoming or outgoing data. |
A port number |
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What is more efficient than TCP for carrying real-time messages such as voice over IP. |
UDP |
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A UDP header contains how many fields? What are they? |
Four. Destination port, source port, length, checksum |
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The sub-protocol that enables TCP/IP to internetwork, that is, to traverse more than one LAN segment and more than one type of network through a router is what? |
IP |
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This operates at the Network layer and manages multicasting. |
IGMP |
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What kind of ARP table entries are created when a client makes an ARP request that cannot be satisfied by data already in the ARP table? |
Dynamic |
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In the TCP/IP protocol suite, what is the core protocol responsible for local addressing? |
IP |
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In IPv4 addressing, each IP address is a unique _____ number. |
32-bit |
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In IPv4 addressing, a node with an IP address of 168.34.88.29 belongs to what class network? |
Class B |
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In IPv4 addressing, an IP address whose first octet is in the range of 192-223 belongs to what class network? |
Class C |
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In dotted decimal notation, what separated each decimal? |
A period |
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The default subnet mask for a Class B network is: |
255.255.0.0 |
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If the standard port number for the Telnet service is 23, a host whose IPv4 address is 10.43.3.87 has a socket address for Telnet of: |
10.43.3.87:23 |
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In the domain name www.google.com, what is the top-level domain? |
com |
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What is a simple Application layer protocol used to synchronize the clocks of computers on a network? |
NTP |
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What happens to an IPv6 packet when its hop limit reaches 0? |
It is discarded. |
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Before you connect to your office network, you want to verify that your workstation's TCP/IPv6 protocols are functioning. Which address do you ping? |
::1 |
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In wavelength division multiplexing, two modulated signals are guaranteed to differ in what characteristic? |
Frequency or color |
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A wave of which of the following frequencies would have the shortest wavelength? 1MHz, 10MHz, 1GHz, 10GHz. |
10GHz |
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What is the function of ARP? |
To obtain the MAC address of a host, and then map that MAC address to the host's IP address |
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Which application would be best suited to multicasting? |
Participating in a company-wide video conference via the Internet. |
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Supposed you have a workstation that uses the IP address 203.12.176.55 on a traditional IPv4 network. To what network class does the workstation belong? |
Class C |
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How many bytes are used for an IPv4 address? |
4 |
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Suppose your computer's IP address is 155.61.9.188, and your network administrator has not subnetted the network to which you're connected. What is your computer's subnet mask? |
255.255.0.0 |
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Suppose you send data to the 1111111 11111111 11111111 11111111 IP address on an IPv4 network. To what devices are your transmitting? |
All devices on your network segment/local network |
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If you are connecting to a network that uses DHCP, and you need to terminate your Windows workstation's DHCP lease which command would you use? |
ipconfig/release |
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What devices are the highest authorities in the domain name system hierarchy? |
Root servers |
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How are MAC and IP addresses different? |
MAC addresses are addresses that are unique to the NIC card and only refer to the physical address on the Data Link layer. IP addresses are unique to each node on a Network layer level as data passes though them. |
