What is the pattern of a preamble?

Related Questions

1. Which of these cable is/are used to connect devices to hubs and switches.
2. What is the distance limitation of Cat5 UTP?
3. Which of the following pieces of equipment will receive a packet from one port and forward that packet…
4. Which of the following is required to communicate between two computers?
5. ------------------- is/ are caused by the random motion of the electrons in a wire and is unavoidable.
6. You're asked to install a Citrix MetaFrame XP server. What protocol will clients use to connect and…
7. To communicate across a TCP/IP network, you must have a DNS server and DNS clients installed.
8. In the symmetric-key method of cryptography, which key is publicly known?
9. You have a network card with only one connector, which looks like a place to plug an oversized phone…
10. Which of the following IP addresses are used by multicast devices?
11. You're configuring a dial-up connection to an ISP. Which of the following protocols is used?
12. Which of the following are not the standard representations defined by Telnet protocol?
13. preamble field of 802.3 frames is encoded using ------------------- encoding
14. 25 is used by SMTP
15. In distance vector routing an active router sends out information ………………………….
16. Identify the topology and network type that uses a central hub with cables connected to workstations.
17. In Secure Electronic Transaction, the description of the purchase and cost is contained in ________…
18. Which of the following filed represents the sender of the message in an electronic mail?
19. What is the distance limitation of Cat5 UTP?
20. Which of the following is a simplex protocol?
21. The Point-to-Point Protocol (PPP) is described in which of the following?
22. Which piece of equipment operates at both the data-link and network layers?
23. At which layer of the OSI model do FTP, SMTP, POP3, and HTTP function?
24. Your Web server is also configured as an FTP server. What part of the data packet will tell the server…
25. Which of the following versions will replace IPv4 Internet layer?
26. Which of the following use default routes for inter domain routing?
27. What is the default subnet mask for a class A network?
28. In ----------------------- configuration, the switch begins to forward the packet as soon as it is received.…
29. 80 is the well-known port number for the HTTP service.
30. What is the length of MARKER field in BGP message header?

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