Vendor: Cisco Exam Code: 100-105 Exam Name: Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0) Q&As: 347(There are 7 parts in the dump, 347 questions in total.)QUESTION 1 Which feature allows a device to use a switch port that is configured for half-duplex to access the network? A. CSMA/CD B. IGMP C. port security D. split horizon Correct Answer: A Explanation Explanation/Reference: Ethernet began as a local area network technology that provided a half-duplex shared channel for stations connected to coaxial cable segments linked with signal repeaters. In this appendix, we take a detailed look at the half-duplex shared- channel mode of operation, and at the CSMA/CD mechanism that makes it work. In the original half-duplex mode, the CSMA/CD protocol allows a set of stations to compete for access to a shared Ethernet channel in a fair and equitable manner. The protocol's rules determine the behavior of Ethernet stations, including when they are allowed to transmit a frame onto a shared Ethernet channel, and what to do when a collision occurs. Today, virtually all devices are connected to Ethernet switch ports over full-duplex media, such as twisted-pair cables. On this type of connection, assuming that both devices can support the full-duplex mode of operation and that Auto-Negotiation (AN) is enabled, the AN protocol will automatically select the highest-performance mode of operation supported by the devices at each end of the link. That will result in full-duplex mode for the vast majority of Ethernet connections with modern interfaces that support full duplex and AN. QUESTION 2 Which statement about the inside interface configuration in a NAT deployment is true? A. It is defined globally B. It identifies the location of source addresses for outgoing packets to be translated using access or route maps. C. It must be configured if static NAT is used D. It identifies the public IP address that traffic will use to reach the internet. Correct Answer: B Explanation Explanation/Reference: This module describes how to configure Network Address Translation (NAT) for IP address conservation and how to configure inside and outside source addresses. This module also provides information about the benefits of configuring NAT for IP address conservation. NAT enables private IP internetworks that use nonregistered IP addresses to connect to the Internet. NAT operates on a device, usually connecting two networks, and translates the private (not globally unique) addresses in the internal network into legal addresses before packets are forwarded onto another network. NAT can be configured to advertise to the outside world only one address for the entire network. This ability provides additional security by effectively hiding the entire internal network behind that one address. NAT is also used at the enterprise edge to allow internal users access to the Internet and to allow Internet access to internal devices such as mail servers. QUESTION 3 Which value is indicated by the next hop in a routing table? A. preference of the route source B. IP address of the remote router for forwarding the packets C. how the route was learned D. exit interface IP address for forwarding the packets Correct Answer: D Explanation Explanation/Reference: The routing table contains network/next hop associations. These associations tell a router that a particular destination can be optimally reached by sending the packet to a specific router that represents the "next hop" on the way to the final destination. The next hop association can also be the outgoing or exit interface to the final destination. QUESTION 4 Which route source code represents the routing protocol with a default administrative distance of 90 in the routing table? A. S B. E C. D D. R E. O Correct Answer: C Explanation Explanation/Reference: SStatic EEGP DEIGRP RRIP OOSPF Default Administrative distance of EIGRP protocol is 90 then answer is C Default Distance Value TableThis table lists the administrative distance default values of the protocols that Cisco supports: Route Source Default Distance Values Connected interface Static route Enhanced Interior Gateway Routing Protocol (EIGRP) summary route External Border Gateway Protocol (BGP) Internal EIGRP IGRP OSPF Intermediate System-to-Intermediate System (IS-IS) Routing Information Protocol (RIP) Exterior Gateway Protocol (EGP) On Demand Routing (ODR) External EIGRP Internal BGP Unknown* QUESTION 5 Refer to the exhibit. Which feature is enabled by this configuration? A. static NAT translation B. a DHCP pool C. a dynamic NAT address pool D. PAT Correct Answer: C Explanation QUESTION 6 Which statement about a router on a stick is true? A. Its date plane router traffic for a single VI AN over two or more switches. B. It uses multiple subinterfaces of a single interface to encapsulate traffic for different VLANs on the same subnet. C. It requires the native VLAN to be disabled. D. It uses multiple subinterfaces of a single interface to encapsulate traffic for different VLANs. Correct Answer: D Explanation Explanation/Reference: on-a-stick



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