41. After you have verified that TCP/IP is installed correctly, what is the next step in verifying the TCP/IP configuration?
A. Ping the broadcast address
B. Ping the Microsoft Web site
C. Ping a distant router.
D. Ping the address of the localhost
E. None of the above
42. Which utility is useful for troubleshooting NetBIOS name resolution problems?
A. NBTSTAT
B. Netstat
C. PING
D. Hostname
E. None of the above
43. The EIA-232 interface has _____ pins.
A. 20
B. 24
C. 25
D. 30
44. In OSI model, which of the following layer transforms information from machine format into that understandable by user
A. application
B. presentation
C. session
D. physical
E. None of the above
45. The channel in the data communication model can be
A. postal mail service
B. telephone lines
C. radio signals
D. All of the above
E. None of the above