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 ?
1 2346Which layers of the OSI model are managed by a network protocol such as TCP/IP? (check all that apply) a. Transport b. Physical c. Network d. Presentation
1 2420On what layer does SMB protocol reside? a. application b. presentation c. session d. transport
1 2616Which layer of the OSI model provides synchronization between user tasks by placing checkpoints in the data stream?
1 2553What OSI level does a bridge work at? a. Application Layer b. Presentation Layer c. Session Layer d. Transport Layer e. Network Layer f. Data Link Layer g. Physical Layer
1 2961What connectivity device works at the physical layer of the OSI model? a. repeater b. bridge c. router d. gateway e. brouter
1 2360Which OSI layer defines QuickTime standard? a. Application b. Presentation c. Session d. Transport
1 2630
What does round trip time mean?
What are manageable and non manageable switches?
Explain the difference between discretionary access control and mandatory access control?
What are protocols?
Explain Q.931 and its use.
Tell me what advantages does fiber optics have over other media?
Explain the following ARQ techniques in detail 1. Stop and wait ARQ 2. Selective repeat ARQ
What is the difference between a straight-through and crossover cable?
How many bits are there in the ip address and port number?
Is tcp or udp better for streaming?
What is rpf check in multicast?
What is MAC address
How can I tell if a port is blocked?
Which application protocol can not be blocked by the Switch?
Explain how can we measure the performance of an ip link?