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Which file is used to identify and register the reserved port numbers, services, and protocols for the Internet. (well know ports)
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Which layer performs basic functions such as file transfer, virtual terminal and job transfer are realized (SMTP, FTP, telnet, NFS, SNMP).
What routing protocols have you configured?
What entry should put in the /etc/gateways file to specify a route to a network called net5 through an external gateway called host9 ? Assume that net5 is 3 hops away.
4 parts of UDP header: a. source IP b. destination IP c. source port d. destination port e. length f. UDP checksum
What does ICMP stand for ?
Receiving host informs header of how much it is ready to receive. This is called ?
Your previous Network Administrator had subnneted your Class C network into many subnets. Only info you have is that the mask was 255.255.255.224 How many subnets did he make ? How many nodes were there per subnet ? a. 2, 62 b. 7, 30 c. 6, 30 d. 6, 62 e. 7, 62
A cyclical redundancy check (CRC) is usually contained in a packet's ?
You mail server belongs to mydomain.com . An email is destined for user@host2 . The destination domain name is not known. This type of email address is ?
You have a class B subnet (128.252.0.0). You want to divide it into 2 subnets. What will the ranges of IPs?
What is flow control ? a. To keep the transmitting device from transmitting no faster than the receiving device can receive. b. To find the best route to a destination c. To determine which machine transmits packets on the wire on a given instance. d. To be able to send a beacon message when congestion occurs.
What is spoofing? a. Where a packets claims its source to be other that what its source really is. b. Same as "denial of service" attacks c. Where a machine continually pings another machine d. Where certain broadcasts are passed through a router
Networking Protocols 
