You want sendmail to attempt to re-deliver previously undelivered mail (e.g. the receving mail server was down) every 30 minutes. Which option and value would you use with the sendmail deamon ?
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What is meant my data qutoe error In ms office
Define the number of network ids in a class c network?
What is looping and how switching loops are avoided at L2 level?
What does the transport protocol do? a. It defines how data should be presented to the next receiving layer, packages the data accordingly, ad then passes data to the application though the session layer interface. b. It provides low-level access to network adapters by providing data transmission support and some basic adapter management functions c. It supports communications between applications on different computers by creating sessions, defining data-exchange formats, and providing application-support services d. It is responsible for establishing logical names on the network, establishing connections between two logical names on the network, and supporting reliable data transfer between computers that have established a session
Which one of TCP and UDP is faster than the other ?
Your HOSTS file looks like this: 123.34.19 product 123.23.45 develop you can ping 187.123.34.19 , but you cannot connect \product etapps . Why ?
Tell me what can be done to fix signal attenuation problems?
What is the most popular internetworking protocol?
What network topology is at the exhibit (Exhibits looks like a star of David) ?
What is a MAC ? a. It is the network layer address of a NIC that can not be modified b. It is the network layer address of a NIC that can be modified c. It is the Data Link Layer address of a NIC that can not be modified d. It is the Data Link Layer address of a NIC that can be modified
I am using windows server 2008 and its working as DHCP server. 100 clients are connected to this server. All clients are accessing Internet. But I wanna to block some specific websites which is not required by client. So how it can be done through DHCP server? is there any third party software available ? or any other method you know then please answer it.
4 parts of UDP header: a. source IP b. destination IP c. source port d. destination port e. length f. UDP checksum
Networking Protocols 
