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76 Cards in this Set
- Front
- Back
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What Cisco product can be used to manage domain names and synchronize IP addresses?
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Cisco DNS/DHCP Manager
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Load sharing and rapid convergence are important in what network tier?
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Core tier
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Which Cisco technology works with in switches for multicasting?
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CGMP - Cisco Group Management Protocol
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What are the five goals of a sound network design?
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Functionality, Scalability, Adaptability, Manageability, Cost effectiveness
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Which tier of the hierarchical model usually contains companywide servers?
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Distribution layer
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What is the decimal range of a Class C address?
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192 to 223
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What are the six steps in Cisco's Design Methodology?
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(1) Analyze requirements (2) Develop the structure or topology (3) Set up addressing and naming conventions (4) Provision the hardware (5) Deploy Cisco IOS software (6) Implement, monitor and manage the network
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What is the decimal range of a Class B address?
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128 to 191
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How does a Class D address map to a MAC address for multicasting?
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The lowest order 23 bits in the IP address are copied to the ethernet MAC address (which starts with 01:00:5e)
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Which tier of the hierarchical model is designed for optimized transport?
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Core tier
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Which goal of network design dictates how much and how fast a network can grow?
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Scalability
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Which tier of the hierarchical model is usually a LAN or group of LANs?
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Access layer
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Which Cisco product allows modeling of network configurations?
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Cisco Netsys
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What are the six benefits of a hierarchical model?
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(1) Scalability, (2) Ease of Implementation, (3) Ease of Troubleshooting, (4) Predictability, (5) Protocol Support, (6) Manageability
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Hierarchical networks should be designed with what in mind?
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Maximum scalability
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Where does EIGRP summarize by default?
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At the classful boundary
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If more than one entry in the routing table matches a destination, which route is used?
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The one with the longest matching prefix
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What is the 80/20 rule state?
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80 percent of traffic should be local to the LAN or VLAN, only 20 percent should cross broadcast domains
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VLANs define what kind of domain?
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Broadcast domain
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To support discontiguous subnets. what type of routing protocol is required?
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One that supports classless routing
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What Cisco technology can be implemented to eliminate a single point of failure at the router?
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HSRP - Hot standby router protocol
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Name three variations of the three-tier design model?
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One tier distributed, One tier hub and spoke, Two tier
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Which Cisco product is replacing the Cisco DNS/DHCP Manager?
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Cisco Network Registrar (CNR)
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Which Cisco technology is a scalable, multi-enterprise solution for multicast?
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PIM - Protocol Independent Multicast
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Where does RIP v1 and IGRP perform route summarization?
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At major classful boundaries
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What are two key benefits of route summarization?
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Reduces memory usage in the router and reduces network traffic
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What is the Class C private IP range?
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192.168.0.0 to 192.168.255.0
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What kind of cabling is used for risers between floors in a campus backbone design?
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Multimode fiber
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What is the Class A private IP range?
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10.0.0.0 to 10.255.255.255
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What is the Class B private IP range?
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172.16.0.0 to 172.31.255.255
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What kind of cabling is used to connect workstations to wiring closets in a campus design?
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Category 5 unshielded twisted pair
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What are the components of the three-tierd network model?
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Core, Distribution and Access tiers
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At which tier of the hierarchical model is a firewall usually deployed?
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Distribution layer
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Which goal of network design dictates how well new technologies can be absorbed?
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Adaptability
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What Cisco feature allows multiple IP subnets to exist on the same router port?
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Seconday addresses
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At which tier of the hierarchical model is QoS usually deployed?
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Core layer
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Which tier of the hierarchical model usually contain the campus backbone routers?
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Distribution layer
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Do RIP v1 and IGRP advertise subnet masks?
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No, they are classful routing protocols
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What is the decimal range of a Class A address?
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0 to 126 (127 is the loopback address)
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Which tier of the hierarchical model primarily provides WAN links to other remote sites?
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Core layer
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If multiple routers are used to connect each floor to the backbone, what type of backbone is in use?
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Distributed backbone
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In which backbone type does a single concentration point connect all user workstations?
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Collapsed backbone
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What are the two basic types of backbones?
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Distrributed and Collapsed
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What are the three requirements to use route summarization?
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(1) IP addresses must share the same high order bits (2) routing decisions must be based on a 32 bit address (3) routing protocols must carry the subnet mask
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In 10Base-2 cabling, at what distance are repeaters necessary?
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185 meters or greater
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What technology combines routing and switching in a single box and caches flows?
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Multilayer switching
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What is a widely deployed high-speed upgrade path for existing legacy FDDI distributed backbones?
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ATM WAN or ATM LANE
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What is the traffic rule when desiging VLANs?
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Keep 80 percent of the traffic local to the VLAN
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Routing protocols can be broadly grouped into what two categories?
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Link state and distance vector
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Does the router transmit the prefix length in classful routing?
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No
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Private IP addressing is defined in what RFC?
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RFC 1918
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Name the two link state protocols
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OSPF and IS-IS
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Name the five distance vector protocols
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RIP v1, RIP v2, IGRP, EIGRP, BGP, EGP
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What is the approximate size of the internet routing table?
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Over 67,000 entries
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What does CIDR aggregate?
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Blocks of Class C addresses for ISPs
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What is the first step in any campus network design?
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Identify technical and business issues that surround the project
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What is the key trade-off that must be made in most network designs?
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Cost and availability
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Which class of addresses is used for multicasting?
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Class D
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What is the range of addresses available for multicast group assignment?
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224.0.0.0 to 239.255.255.255
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Does the router transmit the prefix length in classless routing?
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Yes
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At what network tier should full mesh almost always be used?
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Core layer
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What are the first 3 bytes of a multicast MAC address set to?
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01:00:5e
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Which tier of the hierarchical model is used to implement policy?
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Distribution tier
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Which tier of the hierarchical model provides policy-based connectivity?
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Distribution layer
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What is the minimum ethernet technology needed to truck VLANs?
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Fast Ethernet
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Should end stations be attached to the backbone?
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No
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What technology does Cisco say is typically used for transport on a campus backbone?
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FDDI
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Which campus backbone design uses routers on each floor?
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Distributed backbone
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What is the principal function of the access tier?
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To connect users to the network
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What technology automatically assigns IP addresses to hosts?
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DHCP
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Traditional IP hosts knew only about which three prefix lengths?
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8, 16, and 24 bits
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Should end user stations be added to the Core tier?
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No
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In what network tier are Cisco Express Forwarding and Weighted Random Early Detection found?
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Core tier
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Which network tier connects users into LANs?
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Access tier
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What is the distance limitation of 10Base-T cabling?
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100 meters
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How many bytes does an IP address contain?
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4 bytes
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