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1. Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two.) Network Transport Physical** Data Link** Session 2. What is a primary function of the trailer information added by the data link layer encapsulation? supports error detection** ensures ordered arrival of data provides delivery to correct destination identifies the devices on the local network assists intermediary devices with processing and path selection 3. During the... Read Full Story

1 Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. The LMI is successfully established at both locations. Why is the PVC failing? The PVC to R1 must be point-to-point. LMI types must match on each end of a PVC. The frame relay PVCs cannot be established between Cisco and non-Cisco routers. The... Read Full Story

ccna 1 exploration v 4 module 1 CCNA 1 – module 1 1. Which of the following descriptions are true regarding the management connections on Cisco router? (Choose three.) • They are non-network connections . • They are used to connect the router to the rest of the production network. • They are synchronous serial ports. • They are used for initial router configuration. • They are asynchronous serial ports. • They are accessed using their assigned IP address. 2. The console port can be used for... Read Full Story

CCNA 1 Exploration V4 module 6  1. Which statements are true regarding IP addressing? (Choose two.) • NAT translates public addresses to private addresses destined for the Internet. Only one company is allowed to use a specific private network address space. • Private addresses are blocked from public Internet by router. • Network 172.32.0.0 is part of the private address space. • IP address 127.0.0.1 can be used for a host to direct traffic to itself. 2. Which IPv4 subnetted addresses... Read Full Story

CCNA 1 Exploration V4 Module 4 1. Based on the transport layer header shown in the diagram, which of the following statements describe the established session? (Choose two.) • This is a UDP header. • This contains a Telnet request. • This contains a TFTP data transfer. • The return packet from this remote host will have an Acknowledgement Number of 43693. • This is a TCP header. 2. With TCP/IP data encapsulation, which range of port numbers identifies all well-known applications? • 0 to 255... Read Full Story

1. An operating system is severely damaged. All data on the partition needs to be deleted, and all application software must be reinstalled. Which installation method should be used to correct the problem? • clean install • upgrade • multi-boot • virtualization 2. Which two statements should be included in a pre-installation checklist when upgrading an operating system? (Choose two.) • Verify that the hardware resources have multiple partitions. • Verify that the hardware resources meet or... Read Full Story

CCNA 4 Exploration V4 Final Exam 1. Which of the following describes the roles of devices in a WAN? (Choose three.) • A CSU/DSU terminates a digital local loop. A modem terminates a digital local loop. A CSU/DSU terminates an analog local loop. • A modem terminates an analog local loop. • A router is commonly considered a DTE device. A router is commonly considered a DCE device. 2. What value in the address field of a Frame Relay header identifies the destination of the frame? CIR DE • DLCI... Read Full Story

CCNA 4 Exploration V4 Module 8 1. Which two pieces of information are typically found on a logical network diagram? (Choose two.) cable types connector types • interface identifiers • DLCI for virtual circuits operating system versions 2. Excessive broadcasts are generally a symptom of a problem at which layer? physical • data link network transport 3. What is one example of a physical layer problem? incorrect encapsulation incorrect STP configuration incorrect ARP mapping • incorrect clock... Read Full Story

CCNA 4 Exploration V4 Module 7 1. Why is it important to record baseline measurements of a prototype network? Test results show security weaknesses after the baseline tests are run. The baseline is the point at which the network is operating at its fullest potential. Baseline measurements define a point at which network traffic has exceeded the designed capabilities of the network. • Test results are compared to the baseline to see how the test conditions increase processor use or decrease... Read Full Story

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