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Terms in this set (68)
Forward/Filter, Learning Mac addrs, & Loop prevention are the primary functions of what device?
_ is enabled to control how the switchport handles learning and storing of MAC addrs per int
Which LAN concept is the fastest and does not check the FCS?
Collisions usually happen in the first 64 bytes of a frame. True or False?
cyclic redundancy check is performed, switch receives the whole frame before forwarding.
In what layer is the key function to provide access to end devices?
This layer's function is policy/rule enforcement, path determination, and decision-making
Reliability and speed is required in this layer.
Telnet and SSH uses IP network. True or False?
Startup-config is stored on RAM. True or False?
A VLAN is a collision domain. True or False?
Which VLAN membership offers better security, less labor intensive and dynamic membership?
Which trunking protocol is Cisco proprietary?
This trunk mode of operation is permanent non-trunking
Ports set to Dynamic Auto convert to a trunk link if the neighboring port is set to auto mode.
False it needs to be set to desirable mode
The port is trunked but it will not generate DTP frames. What mode is it set to?
VTP sends advertisements on trunk ports only. True or False?
This VTP mode ignores VTP updates.
All changes to the VTP are saved in NVRAM except in which mode.
This increases available bandwidth by reducing unnecessary flooded traffic
Broadcast storms, MAC table instability, and multiple frame transmission are fixed by __?
On the non-root bridge the port with the lowest administrative cost is forwarding.
On the root bridge only one interface is set to forward traffic. True or False?
When first booted all switches think they are the root switch. True or False
Root bridge is the bridge with the highest bridge ID. True or False
Time spent waiting, after no hellos before changing STP topology is ___
Time spent in the listening and learning states
What spanning tree port state is not explicitly part of the STP
Beyond __ recursive levels loops can't be avoided.
Multiple parallel segments, reduces convergence occurrences, increased bandwidth
This protects against a rogue switch taking over the root switch
Link-Type, Point-to-Point, listening state removed, learning state time reduced
What type of port security is not store in running-config
A layer 2 VLAN must exist for SVI to function. True or False
This type of port exists only in software and allows inter-VLAN routing.
Switch Virtual Interface (SVI)
This protocol supports non-disruptive failover of IP traffic in certain circumstances.
Hot Standby Routing Protocol
The router in an HSRP group with the lowest priority becomes the forwarding router.
What command enables the active router to resume the forwarding router role in HSRP?
Which type of ACL checks only the source address.
Which ACL has an IP range of 1300-1999
Every ACL needs at least one permit statement. True or False?
Place extended access lists close to the ___.
This is the simplest form of routing as long as the network is small.
EIGRP, OSPF, IS-IS and RIPv2 use what type of routing protocols?
Which set of protocols operate within an autonomous system
IGPs (Interior Gateway Protocol)
What overrides split horizon.
The shortest path first algorithm is used in what routing protocol.
This routing protocol is Cisco proprietary and suited for many different topologies
EIGRP (Enchanced Interior Gateway Routing Protocol)
conserves the number of publicly assigned IP addrs but doesn't replace firewalls
NAT (Network Address Translation)
Privacy, Authentication, Data Integrity, Anti-replay are goals of ____
VPN (Virtual Private Network)
IPSEC __ protects against spoofing with a hash, allows info in the packet to be authenticated
Which IPSEC mode supports end-to-end encryption and the source only encrypts the payload?
SSH encrypts terminal traffic and keeps remote sessions private from other network users. T or F
2 Lan Concepts
Learn Mac Address
Learn Mac Addresses
Listen to Frames
Mac w/ int added
Implemented by STP
Avoids Layer 2 Loops(blocking and forwarding state)
Internal Processing (Cisco) Store-and-forward
Frame Check Sequence (FCS
Internal Processing (Cisco) Cut-Through
FCS not checked
Internal Processing (Cisco) Fragment-Free
Avoids erroneous frames from collision
Fragment Free Allows switch to filter out____
Store and Forward Process
Switch receives complete fram
Destination & source read
Cyclic redundancy check done
CRC good = frame forwarded
CRC bad = frame discarded
Latency through switch varies with frame length
Cisco Access Layer
Point at which end users are allowed into the network.
Provides access to end devices
Cisco Distribution Layer
Marks point between access and core
Key function is policy/rule enforcement, path determination, and decision-making
Cisco Core Layer
Reliability and Speed
EIGRP Supports what?
Reduced Bandwidth Usage
Multiple Network-Layer Protocol
5 modes of DTP
Access, Trunk, Dynamic Auto, Dynamic Desirable, No negotiate
Port Security has three violation modes. What are they?
Shutdown, Protect, Restrict
VLans, a broadcast domain and network logic helps to offer what advantages?
Segmentation, Flexibility, Security
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