IT업계의 치열한 경쟁속에 살아 남으려면 자신의 능력을 증명하여야 합니다. 국제승인을 받는 IT인증자격증을 많이 취득하시면 취직이든 승진이든 이직이든 모든 면에서 이득을 볼수 있습니다. 최근 Cisco 200-120 (CCNA Cisco Certified Network Associate CCNA (803))시험에 도전하는 분이 많은데 Pass4Test에서 Cisco 200-120 (CCNA Cisco Certified Network Associate CCNA (803))시험에 대비한 가장 최신버전 덤프공부가이드를 제공해드립니다.
NO.1 A network administrator is verifying the configuration of a newly installed host by establishing
an
FTP connection to a remote server. What is the highest layer of the protocol stack that the network
administrator is using for this operation?
A. application
B. presentation
C. session
D. transport
E. internet
F. data link
Answer: A
NO.2 A receiving host computes the checksum on a frame and determines that the frame is
damaged.
The frame is then discarded. At which OSI layer did this happen?
A. session
B. transport
C. network
D. data link
E. physical
Answer: D
NO.3 A network interface port has collision detection and carrier sensing enabled on a shared
twisted
pair network. From this statement, what is known about the network interface port?
A. This is a 10 Mb/s switch port.
B. This is a 100 Mb/s switch port.
C. This is an Ethernet port operating at half duplex.
D. This is an Ethernet port operating at full duplex.
E. This is a port on a network interface card in a PC.
Answer: C
NO.4 Which of the following describes the roles of devices in a WAN? (Choose three.)
A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.
Answer: A,D,E
NO.5 Which layer in the OSI reference model is responsible for determining the availability of the
receiving program and checking to see if enough resources exist for that communication?
A. transport
B. network
C. presentation
D. session
E. application
Answer: E