Examtut

SNMPv2 vs SNMPv3 Internet Protocol (IP) networks use managing devices such as Simple Network Management Protocol (SNMP) to monitor network attached devices. In a computer network, a group of devices are attached, and they are managed and monitored by a manager. An agent, which is a software module in a managed device, reports information through the SNMP to the manager which has a Network Management System (NMS) that executes the applications that monitor and control managed devices. There are seven SNMP protocol data units (PDU): GetRequest – request to retrieve the value of a variable from the manager to the agent. SetRequest – request to change the value of a variable from the manager to the agent. GetNextRequest – request to find variables from the manager to the agent. GetBulkRequest – enhanced version of GetNextRequest. Response – reply from the agent to the manager through the return of variables. Trap – simultaneous message from the agent to the man...

Refer to the exhibit. Host A pings interface S0/0 on router 3. What is the TTL value for that ping? A. 252 B. 253 C. 254 D. 255 Answer : B Explanation: The TTL or Time-To-Live gives you an indication of the number of routers between the source and destination. The TTL is used to prevent an IP packet from looping inside an IP network and causing a network meltdown. The initial TTL packet value for an IP packet is 255 and then it is decremented by 1 each time it encounters a router. When this value reaches 0, the packet is discarded by a router. The TTL value is contained in each IP packet including ICMP packets. The TTL value given by the ping command is in fact the TTL value of an echo_response packet. By default, Windows will decrease the TTL by 128 and Ubuntu Linux by 192. The above the exact topology of this questions. I used 10.0.0.1 for Host A’s IP address and 12.0.0.2 for R3 S0/0’s IP address. All router has been config...

The following is the tutorial about how recover a Cisco Passwords (Example: Console Password, Enable Password, Enable secret, VTY Password. But no need to removing case or CMOS Battery) Step 1: Restart / Power On the Router “R1” Step 2: Press Ctrl + Break, When the router is booting IOS. This key will interrupt the router boot process and prompt you ROM Monitor (ROMMON) Mode.   Step 3: Change the Configuration Register key to 0x2142 using confreg 0x2142 command. The key 0x2142 used to avoid coping configuration from NVRAM to RAM during next boot process. Then restart the router using reset command Step 4: After router restarted you will prompted for Initial Configuration. Type no to avoid Initial Configuration.   Step 5: Now the router with basic default configuration will be loaded. You can verify your passwords by show startup-config in Privilege EXEC mode.   ...

Refer to the exhibit. Hosts in network 192.168.2.0 are unable to reach hosts in network 192.168.3.0. Based on the output from RouterA, what are two possible reasons for the failure?(Choose two) A. The cable that is connected to S0/0 on RouterA is faulty. B. Interface S0/0 on RouterB is administratively down. C. Interface S0/0 on RouterA is configured with an incorrect subnet mask. D. The IP address that is configured on S0/0 of RouterB is not in the correct subnet. E. Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU. F. The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA. Answer : E, F E: If no clock rate found on DCE end or no keepalive message received , then the Protocol Status changed to down. F: Also if RouterA Serial0/0 and RouterB Serial S0/0 configured with two different protocols (Example: HDLC, PPP), then Protocol statu...

The Dynamic Host Configuration Protocol (DHCP) is a network protocol used to configure devices that are connected to a network so they can communicate on that network using the Internet Protocol (IP). The protocol is implemented in a client-server model, in which DHCP clients request configuration data, such as an IP address, a default gateway, and one or more DNS server addresses from a DHCP server. This tutorial will walk you through configuring a Cisco Router to server as a DHCP server for client computers. Commands: R1>enable R1#conf t R1(config)#service dhcp                                     >   Enables DHCP R1(config)#ip dhcp pool mydhcp                ...

Which command will show the MAC addresses of stations connected to switch ports? A. show mac-address B. show arp C. show table D. show switchport Answer : A Explanation: One of the three main functions of a switch is to learn which devices—that is, MAC addresses—are associated with which interfaces or ports. This information is stored in a port address, or content addressable memory (CAM) table. You can view the CAM table by using the show mac-address-table command. The command show mac-address is short form of show mac-address-table . Topology In this simple topology there were four hosts connected to Sw-Host switch. Each of its IP address and MAC address are shown below the Host icons. The switch Sw-Hosts has been assigned IP address of 192.168.1.254. After some transactions of data between all hosts. Each and every MAC address of hosts will be stored in CAM table. Below is the output of show mac-address...

Refer to the exhibit. A network administrator is adding two new hosts to SwitchA. Which three values could be used for the configuration of these hosts? (Choose three.) A. host A IP address: 192.168.1.79 B. host A IP address: 192.168.1.64 C. host A default gateway: 192.168.1.78 D. host B IP address: 192.168.1.128 E. host B default gateway: 192.168.1.129 F. host B IP address: 192.168.1.190 Answer : A, C, F Explanation: Refer to the exhibit. Host A connected to Port 6 and Host B connected to Port 9. Also Port 6 and Port 9 associated with VLAN10 AND VLAN 20 respectively. In router Rtr1, the sub-interface fa0/0.10 and fa0/0.20 ‘s IP address will be used for Default Gateway for Host A and Host B. First take the IP address of fa0/0.10 – 192.168.1.78 /27 (255.255.255.224) Its IP range will be 192.168.1.65 – 192.168.1.94 Network Address – 192.168.1.64, Broadcast Address – 192.168.1.95 Second take the IP address of fa0/0....

Question 1 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 Explanation: The application layer supports application and end-user processes. Communication partners are identified, quality of service is identified, user authentication and privacy are considered, and any constraints on data syntax are identified. Everything at this layer is application-specific. This layer provides application services for file transfers, e-mail, and other network software services. Telnet and FTP are applications that exist entirely in the application level. Question 2 A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about th...

CCNA Composite Exam: The 200-120 CCNAX is the composite exam associated with the Cisco CCNA Routing and Switching certification. Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices: Accelerated (CCNAX) v2 course. This exam tests a candidate's knowledge and skills required to install, operate, and troubleshoot a small to medium size enterprise branch network. The topics include all the areas covered under ICND 1 and ICND2 Exams. Exam Number 200-120 Associated Certification CCNA Routing and Switching Duration 90 Questions 50 - 60 Language English   The following topics are general guidelines for the content likely to be included on the Cisco Certified Network Associate exam. However, other related topics may also appear on any specific delivery of the e...

Which two privileged mode Cisco IOS commands can be used to determine a Cisco router chassis serial number? (Choose two.) A. show inventory B. show flash:filesys C. dir flash:|include chassis D. show diag E. show controllers Answer : A, D Choice A The “chassis” hardware serial number section designates the serial number that is physically on the router. Choice D The show diag command returns the following information about a router and its adaptors/modules: Hardware version Board revision RMA number and history Chassis serial number Cisco field replaceable unit (FRU) number (a good identifiable part number for the device) Cisco part number (the actual part number of the device) Technical registers of the backplane, including power supply and temperature status (not readable by this command) Ports built into the motherboard of the device Hardware versions, ...

By increasing the first distant office, JS manufactures has extended their business. They configured the remote office router (R3) from which they can reach all Corporate subnets. In order to raise network stableness and lower the memory usage and broadband utilization to R3, JS manufactures makes use of route summarization together with the EIGRP Stub Routing feature. Another network engineer is responsible for the implementing of this solution. However, in the process of configuring EIGRP stub routing connectivity with the remote network devices off of R3 has been missing. Presently JS has configured EIGRP on all routers in the network R2, R3, and R4. Your duty is to find and solve the connectivity failure problem with the remote office router R3. You should then configure route summarization only to the distant office router R3 to complete the task after the problem has been solved. The success of pings from R4 to the R3 LAN interface proves that the fault has been correct...

OSPF is configured on routers Indianapolis and Atlanta. Indianapolis’s S0/0 Interface and Atlanta's S0/1 interface are in Area 0. Atlanta’s Loopback0 interface is in Area 2. You task is to configure the following: Portland’s S0/0 interface in Area 1 Indianapolis’s S0/1 interface in Area 1 Use the appropriate mask such that ONLY Portland’s S0/0 and Indianapolis’s S0/1 could be in Area 1. Area 1 should not receive any external or inter-area routes (except the default route). To download this lab : https://app.box.com/s/izbu1wcbjxdz32hsa1gx Answer: Portland Configuration: Task 1: Portland’s S0/0 interface in Area 1 Task 3: Use the appropriate mask such that ONLY Portland’s S0/0 and Indianapolis’s S0/1 could be in Area 1. The Portland’s S0/0 IP Address is 192.168.4.5/30. So, we need to find the network address and wildcard mask of 192.168.4.5/30 in order to configure the OSPF. IP Address : ...

An administrator is trying to ping and telnet from Switch to Router with the results shown below: For this question we only need to use the show running-config command to answer all the questions below: Router>enable Router#show running-config   Question 1 Which will fix the issue and allow ONLY ping to work while keeping telnet disabled? A. Correctly assign an IP address to interface fa0/1 B. Change the ip access-group command on fa0/0 from “in” to “out” C. Remove access-group 106 in from interface fa0/0 and add access-group 115 in. D. Remove access-group 102 out from interface s0/0/0 and add access-group 114 in E. Remove access-group 106 in from interface fa0/0 and add access-group 104 in Answer : E Explanation: The question was not about FTP so skip line #1 and line #2. The line #3 denies telnet traffic and line #4 permits icmp-echo traffic. L...

A network associate is configuring a router for the Weaver company to provide internet access. The ISP has provided the company six public IP addresses of 198.18.184.105 - 198.18.184.110. The company has 14 hosts that need to access the internet simultaneously. The hosts in the company LAN have been assigned private space addresses in the range of 192.168.100.17 – 192.168.100.30. The following have already been configured on the router: The basic router configuration The appropriate interfaces have been configured for NAT inside and NAT outside The appropriate static routes have also been configured (since the company will be a stub network, no routing protocol will be required.) All passwords have been temporarily set to “cisco” The task is to complete the NAT configuration using all IP addresses assigned by the ISP to provide internet access for the hosts in the weaver LAN. Functionality can be tested by clicking on the host provided for...

Answer is NO Example : Drag the options on the left under the type of switch port that they describe on the right. Answer is You just have to drag the features from the left to the appropriate port on the right. There is no specification in the question about move the question in appropriate order. If you put carries traffic for a single VLAN in third place of Access Port. In real exam this is not an error. But in this VCE software, if we put carries traffic for single VLAN in the third place of Access Port, then it marked the question as Wrong . So cheers guys.

The network administrator has found the following problem. The remote networks 172.16.10.0, 172.16.20.0, and 172.16.30.0 are accessed through the Central router's serial 0/0 interface. No users are able to access 172.16.20.0. After reviewing the command output shown in the graphic, what is the most likely cause of the problem? A. no gateway of last resort on Central B. Central router's not receiving 172.16.20.0 update C. incorrect static route for 172.16.20.0 D. 172.16.20.0 not located in Central's routing table Answer : C Explanation : A static route for 172.16.20.0 is mapped to 172.16.150.15. The route to 172.16.150.0 is mapped to Fa0/0. So if a data from Fast Ethernet 0/0 to 172.16.20.0 network raised, then Central router will loop the data to Fast Ethernet 0/0 itself.

Refer to the exhibit. What is the result of setting the no login command?   A. Telnet access is denied. B. Telnet access requires a new password at the first login. C. Telnet access requires a new password. D. There is a virtually limitless supply of IP addresses. Answer : D Explanation: No Login command allows users to Telnet into a router with no password. Either way, something has to be configured for Telnet to work. Also, you cannot enter privileged mode (which is the IOS EXEC mode that allows you to view or change the configuration on a router) from Telnet unless an Enable password is set. These are very basic features of Cisco routers and allow only some security. Screenshots I just typed “ping 192.168.118.66”, Router R1 IP address: