351-001 - CCIE Cisco Certified InterNetworking Expert
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Connecting an IS-IS router to four links and redistributing 75 routes from RIP. How many LSPs will be originated by this router?
one LSP: containing the router information, internal routes, and external routes
Lafeyette Productions is looking for a new ISP that has improved availability, load balancing, and catastrophe protection. Which type of ISP connectivity solution would be best?
The P4S company's external routers BGP peer with multiple service providers and external organizations. In all situations, the external routers are peered with their BGP neighbors through directly-connected interfaces. How does GTSM provide additional security for your BGP speakers?
GTSM prevents the processing of BGP packets from devices that are not on the directly-connected interfaces.
Which option is true about routing control while using routing protocols in a DMVPN network (or any GRE-over-IPsec network)?
Routing of the data plane traffic should be carried out by means of the GRE tunnel and a separate routing instance should be used to handle routing of the crypto endpoints.
RSVP is short for Resource Reservation Protocol. Which statement is true about the RSVP protocol?
It is initiated uni-directionally along the data path downstream from each requesting node.
A service provider sets up LSP among all the edge routers in its network by using LDP. A user would like to maintain its DSCP marking across the service provider backbone. Mark the MPLS packets with the appropriate EXP values according to QoS policies. Which step should be taken to classify and queue packets on egress nodes on the basis of EXP marking?
disable penultimate hop popping
Which two reasons are valid for aggregating routing information within a network? (Choose two.)
to reduce the impact of topology changes
to reduce the amount of information any specific router within the network must store and process
Which two potential effects are caused by increasing the percentage of priority traffic? (Choose two.)
can increase latency and jitter for priority traffic
can increase latency and jitter for non-priority traffic
Which three types of LSA could each trigger a partial SPF? (Choose three.)
type 3 LSA (ABR Summary Link Advertisements)
type 4 LSA (ASBR Summary Link Advertisements)
type 5 LSA (Autonomous System External Link Advertisements)
Which filter type will you use for all nontransit networks running BGP with multiple, peering, autonomous systems?
a BGP filter to prevent routes learned from one peer from being readvertised to the other peer
Which function is performed by the Community String field defined in a trap PDU?
allow authentication by management station
MPLS VPN is a family of methods for harnessing the power of Multiprotocol Label Switching (MPLS) to create Virtual Private Networks (VPNs). When using MP-BGP peering to connect two MPLS-VPN service providers to one another between route reflectors. Which type of routes should be exchanged between the ASBRs?
PE loopback addresses
The Cisco MDS 9000 Series Multilayer SAN Switches can help lower the total cost of ownership of the most demanding storage environments. By combining a robust and flexible hardware architecture with multiple layers of network and storage-management intelligence, the Cisco MDS 9000 Series helps you build highly available, scalable storage networks with advanced security and unified management. What method does the Cisco MDS 9000 Series use to support trunking?
Which control plane problem can be prevented by implementing QoS, and how to eliminate the problem?
BGP instability, by prioritizing Precedence 6 traffic (per RFC 791)
The network administrator would like to generate synthetic traffic using the Service Assurance Agent contained in Cisco IOS. Which CiscoWorks network management application will be used to report the latency and availability for configured traffic operations on an end-to-end and hop-by-hop (router-to-router) basis?
Internetwork Performance Monitor
EIGRP supports internal and external routes. Which router should be configured as EIGRP stub routers while deploying EIGRP on a network?
routers never used to transit traffic between their neighboring upstream routers
VLAN Tagging, also known as Frame Tagging, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How does ERS use the VLAN tag?
indicate destination as a connection identifier
Which VPN management feature would be considered to ensure that the network had the least disruption of service when making topology changes?
When designing a converged network, which measures can be taken at the building access layer to help eliminate latency and ensure end-to-end quality of service can be maintained? (Choose three.)
onfigure spanning-tree for fast link convergence
isolate voice traffic on separate VLANs
classify and mark traffic close to the source
Which tunneling mechanism provides confidentiality and tunneling capabilities?
The Schuyler and Livingston Iron Works has been working on getting its network security under control. It has set up VPN with IPSec links to its suppliers. It has installed network vulnerability scanners to proactively identify areas of weakness, and it monitors and responds to security events as they occur. It also employs extensive access control lists, stateful firewall implementations, and dedicated firewall appliances. The company has been growing very fast lately and wants to make sure it is up to date on security measures. Which two areas of security would you advise the company to strengthen? (Choose two.)
Which item will be attacked by a DoS attack?
Which two practices need to be implemented to increase SNMPv1 security? (Choose two.)
Use ACLs to allow only specific IP addresses to poll SNMP.
Use a combination of alphanumeric characters for the community strings.
In a single broadcast domain, connect three routers via a standard Ethernet switch. STP is the only Layer 2 protocol running on this link. EIGRP is the only Layer 3 protocol running on this link, which uses a standard configuration. Then, one of the three routers is manually shut down. How will the other two routers discover the loss of this neighbor?
The EIGRP dead timers will expire due to the absence of EIGRP traffic.
NetFlow provides valuable information about network users and applications, peak usage times, and traffic routing. Which function is of NetFlow?
monitor link utilization
Fibre Channel, or FC, is a gigabit-speed network technology primarily used for storage networking. Fibre Channel is standardized in the T11 Technical Committee of the InterNational Committee for Information Technology Standards (INCITS), an American National Standards Institute (ANSI) Caccredited standards committee. Which two of these correctly describe Fibre Channel? (Choose two.)
supports multiple protocols
provides a high speed transport for SCSI payloads
What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones?
79xx IP phones do not mark protocol packets such as DHCP, DNS, or TFTP with non-zero DSCP values.
You are a network technician for the P4S Ltd. You are redistributing between EIGRP autonomous systems 100 and 200. Assume that there are no routing filters or aggregation applied anyplace in the network, which item is the result when a query originating in AS 100 reaches the router redistributing between the two autonomous systems?
The redistributing router will reply to the query in AS 100, and generate a new query in AS 200.
A service provider is offering four classes of service, with each class mapped to a separate queue. Some customers complain about receiving out-of-order packets, which cause application degradation. Which QoS policy activity most likely causes these out-of-order packets?
Which two benefits does VoFR provide? (Choose two.)
You are the Cisco Network Designer in P4S. Which two characteristics are most typical of a SAN? (Choose two.)
Servers request specific blocks of data.
A fabric is used as the hardware for connecting servers to storage devices.
Virtual Private LAN Services (VPLS) is a class of VPN that supports the connection of multiple sites in a single bridged domain over a managed IP/MPLS network. VPLS presents an Ethernet interface to customers, simplifying the LAN/WAN boundary for Service Providers and customers, and enabling rapid and flexible service provisioning, because the service bandwidth is not tied to the physical interface. Which of these statements best describes VPLS?
VPLS emulates an Ethernet switch, with each EMS being analogous to a VLAN.
In a network, all routers deploy FIFO queuing. The primary application running on the network is data backup by use of FTP. At certain times, users experience cyclical performance degradation. Which two items can mitigate this problem and help ensure bandwidth is used effectively in the network? (Choose two.)
You are the Cisco Network Designer in P4S. Your company is using the G.711 codec with 802.11a access point radios. This can support a maximum of how many phones per access point?
Which is the reason that H-VPLS is considered more scalable than flat VPLS?
It minimizes signaling overhead by building two separate layers pseudowire meshes.
It minimizes signaling overhead by only requiring a full pseudowire mesh among N-PEs.
The IGP next-hop reachability for a BGP route is lost but a default route is available. Assuming that BGP connectivity is maintained, what will happen to the BGP route?
It will be considered a valid route.
Scalability is provided in the server farm module by which of the following design strategies?
modular block design at the access level
The Sender Policy Framework (SPF) is an open standard specifying a technical method to prevent sender address forgery. When configuring the SPF exponential backoff timer, which one of the following items is among the primary issues to consider?
average SPF run time
Which description is true about RSVP reservations?
dynamic, allocated when requested, and removed at the end of each session for which they were requested
A Fibre Channel fabric (or Fibre Channel switched fabric, FC-SW) is a switched fabric of Fibre Channel devices enabled by a Fibre Channel switch. Fabrics are normally subdivided by Fibre Channel zoning. Each fabric has a name server and provides other services. Higher redundancy over FC-AL, P2P.Which path selection protocol is used by Fibre Channel fabrics?
Which security benefit can be provided by IPv4 anycast for a service such as DNS?
improved availability of services during DoS attacks
You are the Cisco Network Designer in P4S. Which two settings must be configured in order to use the GUI to configure Call Admission Control with voice applications? (Choose two.)
WMM must be enabled
QoS must be set to Platinum
You are a network engineer for the P4S Ltd. You are measuring one-way delay between two campus networks connected through an MPLS network. One campus is in Chicago and the other is in Dallas. The company has one appliance at each campus with which to measure the delay. Which of the following is a must for the two appliances in order for the engineer to measure one-way delay with the best possible accuracy?
a common TOD reference source
Which two reasons are for instrumenting your network and network devices to collect performance data? (Choose two.)
to enable capacity planning decisions
to determine the locations at which QoS needs to be implemented
Which two reasons are correct about building a flooding domain boundary in a link-state network? (Choose two.)
to aggregate reachability information
to segregate complex and rapidly changing portions of the network from one another
LLQ is short for Low Latency Queue .VoIP traffic is mapped to (LLQ) over a slow speed link. Which kind of delay will seriously affect the quality of voice for this link?
For the following options, which deployment can provide the least amount of downtime and also allow for dual active-active hubs?
GRE tunnels from spokes to dual hubs
The P4S company is planning to deploy a new multicast application in its network to do real-time trading. This application will be performed simultaneously by thousands of traders located throughout the network, each a source of several IP multicast streams, to carry the "sell" and "buy" trading bids. All routers in its network have full hardware support for all PIM multicast modes. Which mode can be used to minimize the impact of the new application on the routers in the P4S network?
When a router running EIGRP takes alternate paths into consideration, which ones will it consider loop-free?
ones in which the reported distance is less than the feasible distance
What are disadvantages to storage directly attached to the application servers? (Choose three.)