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A series of questions and answers related to cisco networking concepts, covering topics such as ip addressing, network protocols, and device configurations. It includes questions about private ip addresses, password security, transport layer protocols, cabling, subnet masks, and the functions of network devices like routers and switches. The document also touches on the osi model, pdu encapsulation, and troubleshooting network connectivity issues, providing a concise review of essential networking principles. This material is useful for exam preparation and understanding network administration concepts. (404 characters)
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Private ip addresses - ANS-10.0.0.0 to 10.255.255.255; 172.16.0.0 to 172.31.255.255; 192.168.0.0 to 192.168.255.255; a technician is asked to secure the privileged EXEC mode of a switch by requiring a password. which type of password would require this login and be considered the most secure? - ANS-enable secret which prompt represents the appropriate mode used for the copy running-config startup- config command? - ANS-switch-6j# UDP is the transport layer protocol for which application? - ANS-TFTP a network administrator remotely accesses the CLI of routerB from PC1 using telnet. which statement is true about this connection? - ANS-the connection is made through a VTY session on the router. cable for a pc to a hub - ANS-straigh through cable cable for a hub to a switch - ANS-crossover cable cable for a switch to a router - ANS-straigh through cable An organization has been assigned network ID 10.10.128.0 and a subnet mask 255.255.224.0. which IP address range can be used for this organization? - ANS- 10.10.128.0 to 10.10.192. what is the effect of using the ROUTER#copy running-config startup-config command on a router? - ANS-the contents of NVRAM will change. A PC is communicating with another PC on a remote network. the two networks are connected by three routers. Which action will help to identify the path between the hosts? - ANS-Use the tracert command at the host. Host A sends a frame with the destination MAC address as FFF.FFF.FFF.FFF. what action will the switch take for this frame? - ANS-it will send the frame to all hosts except host a. which subnet make will allow 2040 hosts per subnet on the ip network 10.0.0.0? - ANS- 255.255.248.
which device should be used for enabling a host to communicate with another host on a different network? - ANS-router what action is taken by a host on an ethernet network when the host attemps to contact a remote host on another network? - ANS-the PDU is sent using the IP address of the destination host and MAC address of the default gateway. which statement is true about the ttl of an IPv4 packet? - ANS-it specifies the remaining life of the packet. a routing issue has occurred in your internetwork. which of the following type of devices should be examined to isolate the error? - ANS-router which statements are true about layer three addresses? - ANS-they are used in routing decisions what is the Cisco IOS? - ANS-systed software for cisco devices correct order for PDU encapsulation? - ANS-frame header; network header, transport header, data, frame trailer. a network has grown too large for technicians to configure network addresses and hosts files for name resolution. which two application layer servuces should be added to the server to allow these needs to be satisfied dynamically? - ANS-DNS, DHCP How many host addresses may be assigned when using the 128.107.0.0 network address with a subnet mask of 255.255.248.0? - ANS- private addresses - ANS-10.0.0.1; 172.31.31.10;192.1968.8. which application layer protolcol allows administrators to log into a server from remote locations and control a server as though logged in locally? - ANS-Telnet which statement identifies the DNS protocol? - ANS-it matches a resource name with the required network address. which two layers of the OSI model describe the same functions as the transport and internet layers as the TCP/IP model? - ANS-transport and network layer what happens when a node on an ethernet network is creating a frame and it does not have the destination mac address? - ANS-the node sends out an ARP request with the destination IP address. an administrator makes changes to the default configuration of a router and saves them to NVRAM. after testing, it is discovered that the configurations did not have the desired effect and must be removes. what steps must be taken to remove the changes and