SWRE Final Exam 8 Flashcards
What protocol or technology is a Cisco proprietary protocol that is automatically enabled on 2960 switches?
DTP
STP
VTP
EtherChannel
DTP
- What address and prefix length is used when configuring an IPv6 default static route?
::/0
FF02::1/8
0.0.0.0/0
::1/128
::/0
What are two characteristics of Cisco Express Forwarding (CEF)? (Choose two.)
When a packet arrives on a router interface, it is forwarded to the control plane where the CPU matches the destination address with a matching routing table entry.
This is the fastest forwarding mechanism on Cisco routers and multilayer switches.
With this switching method, flow information for a packet is stored in the fast-switching cache to forward future packets to the same destination without CPU intervention.
Packets are forwarded based on information in the FIB and an adjacency table.
When a packet arrives on a router interface, it is forwarded to the control plane where the CPU searches for a match in the fast-switching cache.
This is the fastest forwarding mechanism on Cisco routers and multilayer switches.
Packets are forwarded based on information in the FIB and an adjacency table.
Which term describes the role of a Cisco switch in the 802.1X port-based access control?
agent
supplicant
authenticator
authentication server
authenticator
Which Cisco solution helps prevent ARP spoofing and ARP poisoning attacks?
Dynamic ARP Inspection
IP Source Guard
DHCP Snooping
Port Security
Dynamic ARP Inspection
What is an advantage of PVST+?
PVST+ optimizes performance on the network through autoselection of the root bridge.
PVST+ reduces bandwidth consumption compared to traditional implementations of STP that use CST.
PVST+ requires fewer CPU cycles for all the switches in the network.
PVST+ optimizes performance on the network through load sharing.
PVST+ optimizes performance on the network through load sharing.
What protocol or technology uses a standby router to assume packet-forwarding responsibility if the active router fails?
EtherChannel
DTP
HSRP
VTP
HSRP
What is the effect of entering the show ip dhcp snooping binding configuration command on a switch?
It switches a trunk port to access mode.
It checks the source L2 address in the Ethernet header against the sender L2 address in the ARP body.
It restricts the number of discovery messages, per second, to be received on the interface.
It displays the IP-to-MAC address associations for switch interfaces.
It displays the IP-to-MAC address associations for switch interfaces.
What action takes place when the source MAC address of a frame entering a switch is in the MAC address table?
The switch forwards the frame out of the specified port.
The switch updates the refresh timer for the entry.
The switch replaces the old entry and uses the more current port.
The switch adds a MAC address table entry for the destination MAC address and the egress port.
The switch updates the refresh timer for the entry.
A small publishing company has a network design such that when a broadcast is sent on the LAN, 200 devices receive the transmitted broadcast. How can the network administrator reduce the number of devices that receive broadcast traffic?
Add more switches so that fewer devices are on a particular switch.
Replace the switches with switches that have more ports per switch.
This will allow more devices on a particular switch.
Segment the LAN into smaller LANs and route between them.*
Replace at least half of the switches with hubs to reduce the size of the broadcast domain.
What defines a host route on a Cisco router?
The link-local address is added automatically to the routing table as an IPv6 host route.
An IPv4 static host route configuration uses a destination IP address of a specific device and a /32 subnet mask.
A host route is designated with a C in the routing table.
A static IPv6 host route must include the interface type and the interface number of the next hop router.
An IPv4 static host route configuration uses a destination IP address of a specific device and a /32 subnet mask.
What else is required when configuring an IPv6 static route using a next-hop link-local address?
administrative distance
ip address of the neighbor router
network number and subnet mask on the interface of the neighbor router
interface number and type
interface number and type
A technician is configuring a wireless network for a small business using a SOHO wireless router. Which two authentication methods are used, if the router is configured with WPA2? (Choose two.)
personal
AES
TKIP
WEP
enterprise
Personal
Enterprise
Which mitigation technique would prevent rogue servers from providing false IPv6 configuration parameters to clients?
enabling DHCPv6 Guard
enabling RA Guard
implementing port security on edge ports
disabling CDP on edge ports
enabling DHCPv6 Guard
A PC has sent an RS message to an IPv6 router attached to the same network. Which two pieces of information will the router send to the client? (Choose two.)
prefix length
subnet mask in dotted decimal notation
domain name
administrative distance
prefix
DNS server IP address
prefix length
prefix
