Ports 1 to 1023 4. Identify the port numbers for the following applications a. Telnet 23 b. HTTP 80 c. FTP 20, 21 d. DNS 53 e. DHCP 67, 68 5. Define the purpose of a connection oriented protocol. Give an example. It establishes the network connection, manages the data transfer, and terminates the connection.
It is the portion of the IP address that can be used to produce hosts or user IPs for devices. 4. Which of the following is a private IP address and can’t be routed across the Internet? d. 221.24.250.20, because it over the limit of a class C private address. The range for class C private is 192.168.0 to 192.168.255.
Do you think ICMP can identify routers on networks. Yes/No 3. The ARP maps ________________ addresses to _________________ addresses. 4. The RARP maps _______________ addresses to _________________ addresses.
The server itself has to be assigned a static address in the same subnet range, such as 192.168.0.199. If this still doesn’t solve the problem make sure that the DHCP server is still authorized by the Active Directory to lease IP addresses. You should also check to verify that the scope is active, and that the necessary services are running on the DHCP
Dedicated digital circuits 3. c. Routers use Layer 3 and ignore Layers 1 and 2. d. Routers discard old data-link headers and insert new data-link headers as part of their logic, which treats each interface’s lower-layer details as independent from each other. 4. b. As a transport service to deliver IP packets to the next IP router 5. b. Star 6. c. 64 Kbps, 1.544 Mbps, and any speed in between d. No literal distance limitation 7. a. A patch cable with RJ-48 8. c. The switches map the T1 customer lines to one of 28 different frequencies in the T3 trunks.
Enables a database application to access specific records in a database file stored on a SAN drive array B. Identifies specific devices in a drive array C. Installed by default in Windows Server 2008 D. Provided with some SAN drive arrays E. Supports copper and fiber optic media F. Requires redundant drives and redundant host adapters G. Fibre Channel topology H. Hard drive installed inside a computer I. Maintains a database of targets and initiators J. Disk array that does not use RAID Multiple Choice: Select one or more correct answers for each of the following questions. 1. Which of the following statements are true of striped volumes?
Kudler Fine Foods’ wide area network (WAN) consists three local area connections (LANs); the company’s headquarters La Jolla, and two branches Encinitas and Del Mar. The networks are currently wired both locally and externally. The local area networks are wired with 100Base T Ethernet cable. The three locations are connected using a dedicated T3 line. Kudler Fine Foods requests that the local networks be changed from wired to wireless.
On a peer-to-peer network, each piece of the network would act like part of the chain would be both the client and the server. This scenario works best on smaller networks but since each user must grant rights to others, it can become complex if you have to remember multiple passwords if that is how it is set up. Each computer acts as both the client and server, so each computer is part of the network, and as long as one computer is connected to the server that might store specific information, everybody can access other stations as long as they have the proper security setup. 3. This seems to be the standard layout for most networks.
However, the standard does not require this. The SSID is defined as a sequence of 2–32 octets each of which may take any value. It is legitimate for multiple access points to share the same SSID if they provide access to the same network as part of an extended service set. Many access points allow a user to turn off the broadcast of the SSID. With many network client devices, this results in the detected network displaying as an unnamed network and the user would need to manually enter the correct SSID to connect to the network.
Internet Protocol Security (IPsec) was originally developed for IPv6, but found widespread deployment first in IPv4, for which it was re-engineered. IPsec was a mandatory specification of the base IPv6 protocol suite, but has since been made optional (Wikipedia, 2013). Multicasting is the transmission of a packet to multiple destinations in a single send operation, it is part of