Systems Analyst used DFD as a tool in designing a system. DFD stands for ____.Systems Analyst used DFD as a tool in designing a system. DFD stands for ____. PDF

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Systems Analyst used DFD as a tool in designing a system. DFD stands for ____.
Systems Analyst used DFD as a tool in designing a system. DFD stands for ____....

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What today's network design would contain the scope of disruptions on a network should a failure occur? Select one: a.The reduction in the number of redundant devices and connections in the network core b.The installation of only enterprise class equipment throughout the network c.The deployment of distribution layer switches in pairs and the division of access layer switch connections between them d.The configuration of all access layer devices to share a single gateway

Which network design solution below in the current technology today will extend access layer connectivity to user devices? Select one: a.Implementing etherChannel implementation b.Routing protocol implementation c.Wireless connectivity implementation d.Redundancy implementation

Which network design solution among the choices listed below will best extend access layer connectivity to host devices? Select one: a.Etherchannel implementation b.Implementing redundancy c.Dynamic routing implementation d.Implementing wireless connectivity

How much traffic for a 24port Gbit switch at hand capable of generating when operating at full wire speed? Select one: a.48 Gb/s, because this is the maximum forwarding rate on Cisco switches b.48 Gb/s, because of overhead requirements c.12 Gb/s, because of overhead requirements d.24 Gb/s, by providing full bandwidth to each por

In this chapter, what is the function of PoE pass-through? Select one: a.Allows a multilayer switch to forward IP packets at a rate close to that of Layer 2 switching by bypassing the CPU b.Allows multiple physical switch ports to be aggregated together and act as a single logical link to increase bandwidth on trunk links c.Allows switches, phones, and wireless access points to receive power over existing Ethernet cables from an upstream switch

d.Allows a switch to disable redundant Layer 2 paths in the topology to prevent Layer 2 loops

Core Layer is a design model layer that forwards traffic from/to different local networks. Select one: True False What is the useof in-band device management and how it is done? Select one: a.It uses a direct connection to a console or AUX port. b.It is used for initial configuration or when a network connection is unavailable. c.It uses a terminal emulation client. d.It is used to monitor and make configuration changes to a network device over a network connection. How much traffic for a 12port gigabit switch capable of generating when operating at full wire speed? Select one: a.26 Gb/s, because of overhead requirements b.1 Gb/s, because data can only be forwarded from one port at a time c.24 Gb/s, because this is the maximum forwarding rate on Cisco switches d.12 Gb/s, by providing full bandwidth to each port Which among the listed below is a characteristic of in-band device management as discussed in this chapter? Select one: a.It uses a terminal emulation client. b.It is used for initial configuration or when a network connection is unavailable. c.It uses a direct connection to a console or AUX port. d.It is used to monitor and make configuration changes to a network device over a network connection.

If you are a network design engineer, which type of router would an enterprise use to allow customers to access content anytime and anyplace, regardless of whether they are at home or work? Select one: a.Network edge routers b.Service provider routers c.Branch routers d.Modular routers In networking world, "Rack unit" is the term used to express the thickness or height of a switch. Select one: True False

In network troubleshooting, which command is used to display the bandwidth of an interface on an EIGRP-enabled router? Select one: a.show interfaces b.show ip interface brief c.show ip protocols d.show ip route Which among the listed below are the 2 functional parts of the network that can be combined to form a collapsed core design in Cisco Enterprise Architecture? Select one: a.Provider edge and access layer b.Access and distribution layer c.Distribution and core layer d.Enterprise edge and access layer Which among the listed below as discussed in Cisco Enterprise Architecture which two functional parts of the network are combined to form a collapsed core design? Select one: a.Access and distribution layer b.Provider edge and access layer c.Core and distribution layer d.Enterprise edge and access layer Rack Unit is the networking term used to express the thickness or height of a switch. Select one: True False In network troubleshooting, which command can be issued on a router to verify that automatic summarization is enabled? Select one: a.show ip protocols b.show ip interface brief c.show ip eigrp neighbors d.show ip eigrp interfaces Distribution Layer is a design model layer that provides a high-speed backbone link between dispersed networks. Select one: True

False

Access Layer is the layer of which the hierarchical enterprise LAN design model would PoE for VoIP phones and access points be considered. Select one: True False Why would a network administrator of RMS Defence Contractor company issue the show cdp neigbors command on a router especially if a network problem occurs? Select one: a.To display routing table and other information about directly connected Cisco devices b.To display device ID and other information about directly connected Cisco devices c.To display line status and other information about directly connected Cisco devices d.To display router ID and other information about OSPF neighbors A network administrator of Genesis Airlines issue a command of show cdp neigbors on a router, what do you think is the reason? Select one: a.To display device ID and other information about directly connected Cisco devices b.To display router ID and other information about OSPF neighbors c.To display routing table and other information about directly connected Cisco devices d.To display line status and other information about directly connected Cisco devices You want to run the new 802.1w on your switches. Which of the following would enable this protocol? Select one: a.Switch(config)# spanning-tree mode 802.1w b.Switch(config)# spanning-tree mode rapid-pvst c.Switch# spanning-tree mode 802.1w d.Switch# spanning-tree mode rapid-pvst Which of the following is a layer 2 protocol used to maintain a loop-free network? Select one: a.PORTFAST b.STP c.VTP d.CDP A protocol that allows multiple vlans to run in a single spanning-tree instance is called Rapid PVST. Select one: True False

In this chapter, which two types of spanning tree protocols can cause sub-optimal traffic flows because they assume only one spanning-tree instance for the entire bridged network? Select one: a.STP & MSTP b.STP & RSTP c.Rapid PVST+ & RSTP d.PVST+ & VRRP If you want to disable STP on a port connected to a server, which command would you use? Select one: a.spanning-tree off b.spanning-tree portfast c.spanning-tree security d.disable spanning-tree A network administrator is overseeing the implementation of first hop redundancy protocols. Which two protocols will not be able to function with multivendor devices? Select one: a.HSRP & PVST b.VRRP & GLBP c.IRDP & HSRP d.GLBP & HSRP Among the choices below, which protocol specified by RFC 2281 provides network redundancy for IP networks, ensuring that user traffic immediately and transparently recovers from first-hop failures in network edge devices or access circuits? Select one: a.ICMP b.STP c.IRDP d.HSRP An administrator is troubleshooting a switch and wants to verify if it is a root bridge. What command can be used to do this? Select one: a.show spanning-tree b.show running-config c.show startup-config d.show cdp neigh

As per our discussion in this module LAN Redundancy, what is the outcome of a Layer 2 broadcast storm? Select one: a.New traffic is discarded by the switch because it is unable to be processed. b.ARP broadcast requests are returned to the transmitting host. c.CSMA/CD will cause each host to continue transmitting frames. d.Routers will take over the forwarding of frames as switches become congested.

Select one: True False As per our current module discussion, which non-proprietary protocol provides router redundancy for a group of routers which support IPv4 LANs? Select one: a.SLB b.GLBP c.VRRPv2 d.HSRP In this chapter, which is a characteristic of a Layer 2 loop? Select one: a.The Time-to-Live attribute of a frame is set to infinity. b.Routers continually forward packets to other routers. c.Broadcast frames are forwarded back to the sending switch. d.A switch is continually forwarding the same unicast frame. Which of the following statement is true? Select one: a.A switch creates a single collision domain and a single broadcast domain. A router creates a single collision domain. b.A switch creates a single collision domain and separate broadcast domains. A router provides a separate broadcast domain as well. c.A switch creates separate collision domains but one broadcast domain. A router provides a separate broadcast domain. d.A switch creates separate collision domains and separate broadcast domains. A router provides separate collision domains. Which two network design features require Spanning Tree Protocol (STP) to ensure correct network operation? Select one:

a.redundant links between Layer 2 switches & removing single point of failure with multiple Layer 2 switches b.implementing VLANs to contain broadcasts & redundant links between Layer 2 switches c.static default routes & implementing VLANs to contain broadcasts d.link-state dynamic routing that provides redundant routes & static default routes As discussed in this chapter, what is an advantage of PVST+? Select one: a.PVST+ optimizes performance on the network through autoselection of the root bridge. b.PVST+ reduces bandwidth consumption compared to traditional implementations of STP that use CST. c.PVST+ optimizes performance on the network through load sharing. d.PVST+ requires fewer CPU cycles for all the switches in the network. The spanning-tree mode rapid-pvst global configuration command is used to enable Rapid PVST+. Select one: True False A network engineer connected 2 switches together with two crossover cables for redundancy, and STP is disabled. Which of the following will happen between the switches? Select one: a.Broadcast storms will occur on the switched network. b.The routing tables on the switches will not update. c.The MAC forward/filter table will not update on the switch. d.The switches will automatically load-balance between the two links. A network problem occurs suddenly, what is the initial approach that should be used to troubleshoot a broadcast storm in a switched network? Select one: a.Replace all instances of STP with RSTP. b.Manually remove redundant links in the switched network. c.Insert redundant links to replace the failed STP links. d.Replace the cables on failed STP links. What is the purpose of Spanning Tree Protocol in a switched LAN as discussed in this chapter? Select one: a.To manage the VLAN database across multiple switches b.To provide a mechanism for network monitoring in switched environments c.To prevent switching loops in networks with redundant switched paths d.To prevent routing loops in networks with redundant paths

The legacy standard for STP that runs all VLANs in a single spanning-tree instance is called MSTP. Select one: True False Which RSTP ports are connected to end devices? Select one: a.Root ports b.Edge ports c.Trunk ports d.Designated ports In FHRP operation, two or more routers are represented as a single virtual router. Select one: True False As discussed in LAN Redundancy chapter, What is the purpose of HSRP? Select one: a.It enables an access port to immediately transition to the forwarding state. b.It prevents malicious hosts from connecting to trunk ports. c.It prevents a rogue switch from becoming the STP root. d.It provides a continuous

In reference to our current topic which is LAN Redundancy, which 3 components are combined to form a bridge ID? Select one: a.IP address, extended system ID, cost b.MAC address, port ID, ip address c.extended system ID, MAC address, bridge priority d.port ID, ip address, MAC address Among the choices listed below, which port state will switch ports immediately transition to when configured for PortFast? Select one: a.Learning b.Blocking c.Listening d.Forwarding

During the discussion in this chapter, what is a characteristic of in-band device management? Select one: a.It is used for initial configuration or when a network connection is unavailable. b.It uses a terminal emulation client. c.It uses a direct connection to a console or AUX port. d.It is used to monitor and make configuration changes to a network device over a network connection.

If no bridge priority is configured in PVST, which criteria is considered when electing the root bridge? Select one: a.highest MAC address b.lowest IP address c.highest IP address d.lowest MAC address In managing cisco devices, which two requirements must always be met to use in-band management to configure a network device? Select one: a.a direct connection to the auxiliary port & Telnet, SSH, or HTTP access to the device b.at least one network interface that is connected and operational & Telnet, SSH, or HTTP access to the device c.a direct connection to the console port & at least one network interface that is connected and operational d.a terminal emulation client & a direct connection to the console port Which is the default STP operation mode on Cisco Catalyst switches? Select one: a.PVST+ b.MSTP c.MST d.RSTP A connection to a switch went down suddenly, how long can it take for a network using RSTP to converge again after a topology change? Select one: a.10sec b.50sec c.15sec d.6sec

In Genesis Research Lab, a network administrator is reviewing a network design that uses a fixed configuration enterprise router that supports both LAN and WAN connections. However, the engineer realizes that the router does not have enough interfaces to support growth and network expansion. Which type of device should be used as a replacement? Select one: a.a Layer 3 switch b.a modular router c.another fixed configuration router d.a PoE device Which feature ensures that configured switch edge ports do not cause Layer 2 loops if a port is mistakenly connected to another switch? Select one: a.BPDU guard b.PortFast c.PVST+ d.extended system ID In terms of network reliability, the ability of a network to be up most of the time. Sometimes referred to as 99.999, or "five nines". Select one: a.Scalability b.Flexibility c.Reliability d.Integrity In networking term, port density refers to the number of ports available on a single switch. Select one: True False Divides the network into functional components while still maintaining the core, distribution, and access layers of the three-layer model as discussed in chapter 2 LAN Redundancy? Select one: a.Cisco Enterprise Architecture b.Hierarchical network c.Enterprise edge d.Collapsed Core Observe the given output below. A certified network engineer is troubleshooting host connectivity on a LAN that uses a first hop redundancy protocol. Which IPv4 gateway address should be configured on the host?

Select one:

a.192.168.2.0 b.192.168.2.1 c.192.168.2.100 d.192.168.2.2 Access Layer is a design model layer that provides connectivity for the users. Select one: True False A newly hired network engineer has been instructed to implement EtherChannel in a corporate network. What does this configuration consist of? Select one: a.grouping multiple physical ports to increase bandwidth between two switches b.providing redundant links that dynamically block or forward traffic c.providing redundant devices to allow traffic to flow in the event of device failure d.grouping two devices to share a virtual IP address Referring to the lab diagram shown below. The senior network administrator of ABC merchandize tried to create an EtherChannel between S1 and the other two switches via the commands that are shown, but was unsuccessful. What is the problem?

Select one: a.Traffic cannot be sent to two different switches, but only to two different devices like an EtherChannelenabled server and a switch. b.Traffic cannot be sent to two different switches through the same EtherChannel link. c.Traffic can only be sent to two different switches if EtherChannel is implemented on Gigabit Ethernet interfaces. d.Traffic can only be sent to two different switches if EtherChannel is implemented on Layer 3 switches. In wireless LAN standards what wireless LAN technology that is an IEEE 802.15 WPAN standard; uses a device pairing process to communicate over distance up to .05 mile (100m)? Select one: a.WLAN

b.None of the choices c.Wi-Fi d.Bluetooth As discussed in wireless LAN security, an employee connects wirelessly to the company network using a cell phone. The employee then configures the cell phone to act as a wireless access point that will allow new employees to connect to the company network. Which type of security threat best describes this situation? Select one: a.denial of service b.cracking c.Man in the middle d.rogue access point Understanding EtherChannel technology, what is an advantage of using LACP? Select one: a.increases redundancy to Layer 3 devices b.allows automatic formation of EtherChannel links c.provides a simulated environment for testing link aggregation d.decreases the chance of a spanning-tree loop Using LACP, besides of being a multivendor protocol which among the listed below describes as it advantage? Select one: a.increases redundancy to Layer 3 devices b.decreases the chance of a spanning-tree loop c.provides a simulated environment for testing link aggregation d.allows automatic formation of EtherChannel links In deploying wireless LAN which parameter is commonly used to identify a wireless network name when a home wireless AP is being configured? Select one: a.SSID b.BESS c.AP hostname d.ESS In implementing EtherChannel technology, which PAgP mode combination will establish an EtherChannel? Select one: a.switch 1 set to on; switch 2 set to desirable. b.switch 1 set to auto; switch 2 set to on.

c.switch 1 set to auto; switch 2 set to auto.

d.switch 1 set to desirable; switch 2 set to desirable. Which statement is correct as discussed in this chapter regarding the use of PAgP to create EtherChannels? Select one: a.It is Cisco proprietary. b.It increases the number of ports that are participating in spanning tree. c.It requires full duplex. d.It requires more physical links than LACP does.

Refer to the exhibit shown above. A certified network administrator is troubleshooting the four routers that are connected to an Ethernet LAN segment and are configured to run OSPFv3. However, none of the routers are receiving routing updates. What is the cause of the problem? Select one: a.The routers are using IPv4 addresses for router IDs. b.The network type has been set to BROADCAST instead of NBMA. c.The routers are using IPv6 link local addresses to communicate. d.All of the routers have an OSPFv3 interface priority of 0. Refer to the test result above. These two routers are configured to run OSPFv3 but they are not forming a neighbor adjacency. What is the cause of the problem? Select one: a.The routers have both been elected as the DR. b.The routers have the same priority. c.The routers do not have global IPv6 addresses that are configured on the Fa0/0 interfaces. d.The routers are configured with the same router ID. Which 3 features are OSPF routing protocol? Select one: a.Allows authentication, uses concept of area which helps for route summarization and dependent to hop counts. b.Converge quickly, Identify the best router by the use of hops & OSPF routers identify directly connected devices c.Use highiest ip address, OSPF is a classful routing protocol & OSPF does not allow authentication d.Conve...