Which two statements about DSL are true? (Choose two.) users are on a shared medium uses RF signal transmission local loop can be up to 3.5 miles (5.5km) physical and data link layers are defined by DOCSIS user connections are aggregated at a DSLAM located at the CO.
Which two statements are true regarding a PPP connection between two Cisco routers? (Choose two.) LCP tests the quality of the link. LCP manages compression on the link. Only a single NCP is allowed between the two routers NCP terminates the link when data exchange is complete. With CHAP authentication, the routers exchange plain text passwords.
A network administrator is asked to design a system to allow simultaneous access to the Internet for 250 users. The ISP can only supply five public IP addresses for this network. What technology can the administrator use to accomplish this task? classful subnetting variable length subnet masks classless interdomain routing port-based Network Address Translation.
Refer to the exhibit. An administrator is configuring NAT to provide Internet access to the inside network. After the configuration is completed, users are unable to access the Internet. What is the cause of the problem? The NAT pool is using an invalid address range. The inside and outside interfaces are backwards. The ACL is referencing the wrong network address. The NAT inside source command is referring to the wrong ACL.
What is the expected behavior of an ADSL service? The download rate is faster than the upload rate. The upload rate is faster than the download rate. The download and upload rates are the same. The user can select the upload and download rates based on need.
A network administrator is troubleshooting the dynamic NAT that is configured on router R2. Which command can the administrator use to see the total number of active NAT translations and the number of addresses that are allocated from the NAT pool? R2# show ip nat statistics R2# show ip nat translations R2# show running-config R2# clear ip nat translation.
Which type of traffic would most likely have problems when passing through a NAT device? Telnet IPsec HTTP ICMP DNS.
Refer to the exhibit. The inside local IP address of PC-A is 192.168.0.200. What will be the inside global address of packets from PC-A after they are translated by R1? 10.0.0.1 172.16.0.1 192.168.0.1 192.168.0.200 209.165.200.225.
Refer to the exhibit. What kind of NAT is being configured on R1? PAT dynamic NAT NAT overload port forwarding.
What benefit does NAT64 provide? It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses. It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address. It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses. It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from hosts on public IPv4 networks.
What are three benefits of using Frame Relay for WAN connectivity? (Choose three.) QoS support using the IP precedence field one physical interface that can be used for several circuits integrated encryption mature technology reasonable cost seamless direct connectivity to an Ethernet LAN.
The DLCI number assigned to a Frame Relay circuit is to be manually added on a point-to-point link. Which three subinterface commands could be used to complete the configuration? (Choose three.) bandwidth kilobits encapsulation frame-relay frame-relay interface-dlci dlci frame-relay map ip ip-address dlci frame-relay map ip ip-address dlci broadcast ip address ip-address mask no shutdown.
Which command can be used to check the information about congestion on a Frame Relay link? show frame-relay pvc show frame-relay lmi show interfaces show frame-relay map.
Refer to the exhibit. A network administrator has implemented the configuration in the displayed output. What is missing from the configuration that would be preventing OSPF routing updates from passing to the Frame Relay service provider? The passive-interface command has not been issued on interface serial 0/1/0. The broadcast keyword has not been issued. The directly connected neighbor should have been identified by using static mapping. The command to disable split horizon has not been issued.
What is a characteristic of Frame Relay that allows customer data transmissions to dynamically “burst” over their CIR for short periods of time? The combination of LMI status messages and Inverse ARP messages enables the CIR to be exceeded. The physical circuits of the Frame Relay network are shared between subscribers and there may be times when unused bandwidth is available. Bursting is enabled by the configuration of multiple subinterfaces on one physical interface. BECN and FECN messages notify the router that the CIR can be exceeded.
BECN and FECN messages notify the router that the CIR can be exceeded. DSL fiber-to-the-home cable WiMax.
Which technology requires the use of PPPoE to provide PPP connections to customers? dialup analog modem dialup ISDN modem DSL T1.
Why is it useful to categorize networks by size when discussing network design? Knowing the number of connected devices will define how many multilayer switches will be necessary at the core layer. Knowing the number of connected devices will define how many additional layers will be added to the three-tier hierarchical network design. A high-level redundancy at the access layer may be better implemented if the number of connected devices is known. The complexity of networking infrastructure will vary according to the number of connected devices.
A company connects to one ISP via multiple connections. What is the name given to this type of connection? single-homed multihomed dual-multihomed dual-homed.
What is one advantage to designing networks in building block fashion for large companies? failure isolation increased network access time coarse security control fewer required physical resources.
Which network module maintains the resources that employees, partners, and customers rely on to effectively create, collaborate, and interact with information? access-distribution services data center enterprise edge.
A group of Windows PCs in a new subnet has been added to an Ethernet network. When testing the connectivity, a technician finds that these PCs can access local network resources but not the Internet resources. To troubleshoot the problem, the technician wants to initially confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the local router. Which three Windows CLI commands and utilities will provide the necessary information? (Choose three.) arp -a ipconfig nslookup ping telnet tracert netsh interface ipv6 show neighbor.
A team of engineers has identified a solution to a significant network problem. The proposed solution is likely to affect critical network infrastructure components. What should the team follow while implementing the solution to avoid interfering with other processes and infrastructure? change-control procedures one of the layered troubleshooting approaches knowledge base guidelines syslog messages and reports.
Which two specialized troubleshooting tools can monitor the amount of traffic that passes through a switch? (Choose two.) TDR digital multimeter NAM portable network analyzer DTX cable analyzer.
Which statement is a characteristic of SNMP MIBs? The MIB organizes variables in a flat manner. The SNMP agent uses the SNMP manager to access information within the MIB. The NMS must have access to the MIB in order for SNMP to operate properly. The MIB structure for a given device includes only variables that are specific to that device or vendor..
Refer to the exhibit. Router R1 was configured by a network administrator to use SNMP version 2. The following commands were issued:
R1(config)# snmp-server community batonaug ro SNMP_ACL
R1(config)# snmp-server contact Wayne World
R1(config)# snmp-server host 192.168.1.3 version 2c batonaug
R1(config)# ip access-list standard SNMP_ACL
R1(config-std-nacl)# permit 192.168.10.3
Why is the administrator not able to get any information from R1? The snmp-server enable traps command is missing. The snmp-server community command needs to include the rw keyword. There is a problem with the ACL configuration. The snmp-server location command is missing..
What is used as the default event logging destination for Cisco routers and switches? terminal line syslog server console line workstation.
In the data gathering process, which type of device will listen for traffic, but only gather traffic statistics? NMS syslog server NetFlow collector SNMP agent.
Which three flows associated with consumer applications are supported by NetFlow collectors? (Choose three.) bandwidth regulation accounting billing quality of service error correction network monitoring.
Which algorithm is considered insecure for use in IPsec encryption? 3DES AES RSA SHA-1.
Two corporations have just completed a merger. The network engineer has been asked to connect the two corporate networks without the expense of leased lines. Which solution would be the most cost effective method of providing a proper and secure connection between the two corporate networks? Cisco AnyConnect Secure Mobility Client with SSL Cisco Secure Mobility Clientless SSL VPN Frame Relay remote access VPN using IPsec site-to-site VPN.
Refer to the exhibit. Which IP address is configured on the physical interface of the CORP router? 10.1.1.1 10.1.1.2 209.165.202.133 209.165.202.134.
What are three characteristics of the generic routing encapsulation (GRE) protocol? (Choose three.) GRE tunnels support multicast traffic. By default, GRE does not include any flow control mechanisms. Developed by the IETF, GRE is a secure tunneling protocol that was designed for Cisco routers. GRE uses AES for encryption unless otherwise specified. GRE creates additional overhead for packets that are traveling through the VPN. GRE provides encapsulation for a single protocol type that is traveling through the VPN.
Which two statements describe remote access VPNs? (Choose two.) Remote access VPNs are used to connect entire networks, such as a branch office to headquarters. End users are not aware that VPNs exists. A leased line is required to implement remote access VPNs. Client software is usually required to be able to access the network.* Remote access VPNs support the needs of telecommuters and mobile users.*.
Under which two categories of WAN connections does Frame Relay fit? (Choose two.) public infrastructure private infrastructure dedicated Internet packet-switched.
What term is used to identify the point where the customer network ends and the service provider network begins? CSU/DSU the central office the local loop the demarcation point.
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