CCNA Practice Certification Exam # 1 What are three examples of TCP/IP application layer protocols? (Choose three.) a terminal emulation protocol that supports remote console connections with work devices a protocol created by IBM that makes it easier for mainframes to connect to remote offices a protocol responsible for transporting electronic mail on TCP/works and the a protocol that controls the rate at which data is sent to puter a protocol that work management information between work device and a management console a protocol that conducts a test of the path through which a packet travels from source to destination Refer to the exhibit. The exhibit shows simplified protocol data units from different OSI model layers. Which three statements are true about the PDUs and the encapsulation process? (Choose three.) PDU #1 is a frame. PDU #2 is an application layer PDU PDU #3 is a segment. PDU #4 is a transport layer PDU. The order in which these PDUs are created during the encapsulation process is 3, 4, 1, 2. The order in which these PDUs are created during the encapsulation process is 2, 1, 4, 3. 窗体顶端 What are two characteristics of TCP? (Choose two.) data transport reliability best path determination establishing, maintaining, and terminating virtual circuits encapsulation of packets in a data frame with source and destination MAC addresses best-effort datagram delivery 窗体底端 Refer to the exhibit. What type of Layer 2 encapsulation will be used for connection D on the basis of this configuration on a newly installed router: RtrA(config)# interface serial0/0/0 RtrA(config-if)# ip address RtrA(config-if)# no shutdown
Frame Relay HDLC PPP 窗体顶端 Which three factors contribute to congestion on an LAN? (Choose three.) improper placement of enterprise level servers addition of hosts to a physical segment replacement of hubs with workgroup switches increasing use of bandwidth wo
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