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55 Cards in this Set
- Front
- Back
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which 3 items are normally included when a log message is generated by a syslog client and forwarded to a syslog server?
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1. date and time of message 2. id of sending device 3. message id |
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which WAN tech uses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits
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ATM |
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what can cause a reduction in available bandwidth on a cable broadband connection?
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number of subscribers
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a technician has been asked to configure a broadband connection for a teleworker. He's been instructed that all uploads and downloads for the connection must use existing phone lines. Which broadband tech should be used?
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DSL |
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Which 3 algorithms can be used to encrypt user data in IPsec VPN framework
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2. AES 3. DES |
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Which two layer 1 requirements are outlines in the data-over-cable service interface specification (DOCSIS)?
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1. channel widths 2. modulation techniques |
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which makes the cisco easy VON application a useful tool for vpn implementation?
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it simplifies the configuration tasks for the device that is used as the VPN server
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how many addresses will be available for dynamic nat translation with: Router(config)# ip nat pool TAME 209.165.201.23 165.201.30 netmask 255.255.255.224 Router(config)#ip nat inside source list 9 pool TAME |
8
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which 3 statements are true regarding frame relay LMI
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2. LMI types supported by cisco routers are CISCO and IETF 3. LMI type configured on router must match the one used on frame relay switch |
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the output of the show ip interface brief command indicates that serial0 is up but the line protocol is down. what are 2 possible causes?
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2. keepalives are not being sent by the remote device |
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a user is unable to connect to the internet. the network admin decides to use the top-down troubleshooting approach. which action should the admin perform first?
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enter an ip address in the web browser to determine is DNS server has failed |
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how does an SNMP trap aid network monitoring and management?
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it sends an alert message to the management station when a threshold is reached |
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what are two characteristics of DSL tech?
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2. filters and splitters allow POTS and DSL traffic to share the same medium |
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a network admin has moved the company intranet web server from a network switch port to a dedicated router interface. how can the admin determine how this change has affected performance and availability on the company intranet?
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conduct a performance test and compare with the baseline that was established previously |
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which statement is true about NCP?
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Each network protocol has a corresponding NCP
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which 2 statements about netflow are true
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2. netflow is cisco-specific feature that enables the collection of detailed traffic profiles |
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what 3 parameters are used by Netflow to classify traffic
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1. ingress interface 2. TOS field 3. port number |
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what is the purpose of cisco enterprise architecture?
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it provides enterprise-wide system network architecture that helps protect, optimize, and grow the network infrastructure that supports the business processes of a company
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while planning an upgrade, a network admin uses netflow to analyze data flow. what generated the most packets? (refer to exhibit)
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TCP-other
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which is a clientless VPN solution for mobile workers?
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SSL
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What is IPsec?
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a specification for the way in which a group of protocols and algorithms combine to create VPNs
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what are 2 specific benefits provided by IPsec?
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1. encryption 2. encapsulation |
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how does STDM allocate bandwidth on a serial connection?
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it keeps track of conversations that require extra bandwidth then dynamically reassigns unused time slices on an as-needed basis.
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which statement is true about the operation of site-to-site vpn connections?
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the data encrypted and decrypted by vpn gateways at both sending and receiving sides
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which 2 products are part of the cisco collaboration architecture
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1. cisco telepresence 2. cisco unified communications |
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a company has been assigned 203.0.113.0/27. the company has over 600 internal devices. what type of nat should it use?
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dynamic NAT overload
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an admin needs to configure a router so that internal network servers are accessible from the internet. each server is configured with a private ipv4 address. what type of nat should the admin configure?
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static nat
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refer to the exhibit. which device is the inside host and which is the local host?
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PCB, 209.165.200.225
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refer to the exhibit. 10.1.1.45 cannot access the internet. Why?
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the nat pool has been exhausted
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which 3 parts of a frame relay layer 2 PDU are used for congestion control?
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1. FECN bit 2. BECN bit 3. DE bit |
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refer to the exhibit. a network admin has configured the edge router as shown. connectivity is failing between it and a non cisco frame relay router. what should be done to repair?
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issue the broadcast keyword when performing static mapping on interface serial0/1/0
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what is the relationship between the DE and CIR in frame relay?
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when the CIR on a given DLCI is exceeded, the DE bit of frames above the CIR is set
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which IEEE standard defines the wimax tech?
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802.16
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for a vpn, which technology provides secure remote access over broadband?
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IPSec
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which 2 technologies are implemented by organizations to support teleworker in remote connections?
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1. vpn 2. IPSec |
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which basic network module of the enterprise architecture is the fundamental component of a campus design?
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access-distribution
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what are 2 examples of network problems that are found at the data link layer?
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2. framing errors |
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users are reporting longer delays in authentication and in accessing network resources. what kind of information should network engineers check to see if its part of normal network behavior?
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network performance baseline
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refer to the exhibit. which 3 events occur as a result of he configuration?
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1. messages sent to the syslog server will be limited to level 3 and lower 2. messages will use 192.168.1.5 as destination 3. syslog messages will contain the IP address of g0/1 |
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what is the disadvantage of a packet-switched network compared to circuit-switched?
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higher latency
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what is a type of vpn that is generally transparent to the end user
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site to site
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which statement best describes a wan?
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a wan interconnects lans over long distances
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how many 64kb/s voice channels are combined to produce a t1 line?
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24
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in the cisco enterprise architecture network design what is the purpose of enterprise edge module?
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to provide internet, vpn, and wan connections
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referto the exhibit. a ping from R1 to 10.1.1.2 is successful but unsuccessful to 192.169.2.0. what is the cause?
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the static route for 192.16.2.0 is incorrectly configured
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refer to the exhibit. a small office uses ISR to provide connectivity. a worker cannot connect wirelessly. he can ping the default gateway. what is the next troubleshooting step?
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ping from the server to the gateway IP
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Refer to the exhibit. a network admin is troubleshooting ospf. the 10.10.0.0/16 is not showing in the router table of R1. what's the problem?
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there is an incorrect wildcard mask statement for 10.10.0.0 on R2
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Refer to the exhibit. after the debug command is execute a ping from R3 to R1 fails. why?
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an incorrect ip address exists in the map statement
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refer to the exhibit. what type of layer2 encapsulation will be used for connection D?
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HLDC
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Te security policy in a company specifies that the staff in the sales department must use a VPN to connect to the corporate network when they travel. what component is needed?
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VPN client software
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which PPP protocol allows a device to specify an ip address for routing over PPP link?
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IPCP
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refer to the exhibit. a network admin has configured routers RTA and RTB but connect ping between this. which layer of the OSI model is the problem?
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data link
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what is the default location for cisco routers and switches to send critical logging events?
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console port
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open the PT activity. what message is displayed in the web browser?
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PPP is working!
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open the PT activity. what IP address range is used for inside global address from PC1?
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209.165.200.225-200.165.200.229
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