Download CCNA 200-301 Exam Q&A: VLANs and Switch Configuration and more Exams Nursing in PDF only on Docsity!
CCNA 200-301 EXAM QUESTIONS
WITH CORRECT ANSWERS
What |is |the |primary |purpose |of |a |VLAN? |- |CORRECT |ANSWER✔✔-To |create |a |broadcast | domain; |enable |segmentation |or |isolation |of |broadcast |traffic Unassigned |Cisco |switch |ports |remain |in |which |VLAN? |- |CORRECT |ANSWER✔✔-VLAN | 1 Do |VLANs |prevent |broadcast |storms? |- |CORRECT |ANSWER✔✔-No, |they |minimize |the |size |and | effect |of |the |broadcast |storm |on |neighbor |switches |and |hosts What |are |four |advantages |to |using |VLANs? |- |CORRECT |ANSWER✔✔-1. |Enable |access |to | network |services |based |on |logical |requirements
- |Network |security |is |optimized |with |VLANs |that |enable |managing |and |filtering |sensitive | traffic |from |other |network |traffic
- |Bandwidth |efficiency |is |accomplished |through |segmenting |traffic |into |smaller |broadcast | domains
- |Easier |add/move/delete |administration |of |endpoints |on |a |network |and |scalability |for |larger | enterprise |deployments What |is |the |Layer | 2 |Broadcast |Destination |Address? |- |CORRECT |ANSWER✔✔-FFFF.FFFF.FFFF What |is |the |Layer | 3 |Broadcast |Destination |Address? |- |CORRECT |ANSWER✔✔-255.255.255. What |is |VLAN | 1 |used |for |and |can |it |be |deleted? |- |CORRECT |ANSWER✔✔-Management |Traffic; | it |cannot |be |deleted
What |is |the |normal |VLAN |range? |- |CORRECT |ANSWER✔✔-VLAN | 2 |- | 1001 What |is |the |extended |VLAN |range? |- |CORRECT |ANSWER✔✔-VLAN | 1006 |- | 4094 What |VLANs |are |auto-created |and |cannot |be |deleted? |- |CORRECT |ANSWER✔✔-VLAN |1, | 1002 |- | 1005 What |VLANs |cannot |be |pruned |from |a |trunk? |- |CORRECT |ANSWER✔✔-VLAN | 1006 |- | 4094 How |many |VLANs |can |be |assigned |to |a |switch |access |port? |- |CORRECT |ANSWER✔✔-Only |one | VLAN |unless |you |are |connecting |an |IP |phone What |commands |would |you |use |to |setup |a |switch |access |port |with |an |IP |phone? |- |CORRECT | ANSWER✔✔-interface |<interface#/#> switchport |mode |access switchport |access |vlan |# switchport |voice |vlan |# Where |is |the |switch |VLAN |configuration |stored? |- |CORRECT |ANSWER✔✔-vlan.dat |file What |commands |would |you |use |to |globally |create |and |name |a |VLAN? |- |CORRECT | ANSWER✔✔-vlan |# name |<name_of_vlan> What |is |the |default |switch |port |mode? |- |CORRECT |ANSWER✔✔-Access |port
- |Create |separate |broadcast |domains |per |VLAN What |method |was |used |for |detecting |Ethernet |collisions |on |older |hubs |and |bridges? |- | CORRECT |ANSWER✔✔-Carrier |Sense |Multiple |Access |Collision |Detection |(CSMA/CD) How |many |separate |MAC |address |table |does |a |switch |create? |- |CORRECT |ANSWER✔✔-A | switch |creates |a |separate |MAC |address |table |for |each |configured |VLAN What |command |lists |the |contents |of |the |MAC |address |table |for |a |switch? |- |CORRECT | ANSWER✔✔-show |mac |address-table When |does |a |switch |begin |MAC |address |learning? |- |CORRECT |ANSWER✔✔-When |a |switch |is | first |started |and |connected |hosts |start |sending |frames? |Also |triggered |when |the |aging |time | expires |for |an |address What |is |the |default |time |that |a |switch |removes |MAC |address |table |entries? |- |CORRECT | ANSWER✔✔-300 |seconds How |do |you |disable |MAC |address |table |aging? |- |CORRECT |ANSWER✔✔-Configure |the |MAC | aging |timer |to |zero What |are |the |steps |when |a |host |sends |data |to |a |server |on |the |same |VLAN |for |the |first |time? |- |CORRECT |ANSWER✔✔-1. |Switch |adds |the |source |MAC |address |of |incoming |frame |if |it |is |not | listed |in |the |MAC |address |table
- |Switch |does |a |MAC |address |table |lookup |for |the |destination |MAC |address
- |Switch |floods |a |frame |using |FFFF.FFFF.FFFF |as |destination |MAC |address |out |all |switch |ports | except |the |port |where |the |source |MAC |address |was |learned
- |Server |wit |the |assigned |MAC |address |responds |with |a |frame |that |lists |the |MAC |address
- |Switch |updates |the |MAC |address |table |with |the |MAC |address |of |the |server; |That |is |the | destination |MAC |address |for |frames |sent |from |the |host
- |Switch |forwards |the |frames |from |the |host |to |the |server |based |on |the |switch |port |assigned | to |the |server What |is |Cut-Through |Switching? |- |CORRECT |ANSWER✔✔-It |is |a |technique |that |optimizes | performance |by |examing |only |the |first | 6 |bytes |(destination |MAC |address) |of |an |Ethernet | frame |before |making |a |forwarding |decision. |The |switch |does |a |MAC |address |table |lookup |for | the |destination |MAC |address |and |forwards |the |frame. What |is |the |advantage |of |Cut-Through |Switching? |- |CORRECT |ANSWER✔✔-The |forwarding | decision |is |made |before |all |of |the |frame |arrives |and |thereby |minimizes |latency What |is |Store-and-Forward |Switching? |- |CORRECT |ANSWER✔✔-Traditional |switching |where | the |frame |is |not |forwarded |until |all |of |the |frame |has |arrived. |The |switch |copies |the |frame |to | memory |before |examining |the |destination |MAC |address |and |forwarding |the |frame. What |is |CEF? |- |CORRECT |ANSWER✔✔-Cisco |Express |Forwarding: |Layer | 3 |switching |technique | that |creates |FIB |and |adjacency |tables |for |optimized |forwarding. |It |is |only |available |on |routers | and |switch |platforms |with |routing |enabled |and |the |required |hardware What |is |an |FIB? |- |CORRECT |ANSWER✔✔-Forwarding |Information |Base: |Used |by |CEF |to |mae |IP |destination |prefix-based |switching |decisions. |Conceptually |similar |to |a |routing |table |or | information |base. |It |maintains |a |mirror |image |of |the |forwarding |information |contained |in |the | IP |routing |table. Which |devices |can |perform |frame |rewrite? |- |CORRECT |ANSWER✔✔-Layer | 3 |switches |and | Wireless |LAN |Controllers
What |command |sets |a |range |of |VLANs |to |an |interface? |- |CORRECT |ANSWER✔✔-switchport | trunk |allowed |vlan |<#>-<#> What |are |the |three |modes |of |DTP? |- |CORRECT |ANSWER✔✔-nonegotiate, |desirable, |auto Is |DTP |enabled |by |default |on |switch |ports? |- |CORRECT |ANSWER✔✔-Yes What |does |a |switch |port |configured |with |desirable |mode |do? |- |CORRECT |ANSWER✔✔-Actively |sends |DTP |frames |to |negotiate |trunk |with |neighbor |switch What |is |the |operation |of |switchport |mode |access? |- |CORRECT |ANSWER✔✔-Access |port |only | (no |trunk) |- |only |one |VLAN, |two |if |you |include |a |Voice |VLAN What |is |the |operation |of |switchport |mode |trunk? |- |CORRECT |ANSWER✔✔-Trunk |statically | formed |and |no |DTP |frames |sent What |is |the |operation |of |switchport |mode |dynamic |auto? |- |CORRECT |ANSWER✔✔-Listens |for | DTP |requests What |is |the |operation |of |switchport |mode |dynamic |desirable? |- |CORRECT |ANSWER✔✔-Listens |and |sends |DTP |requests What |is |the |operation |of |switchport |nonegotiate? |- |CORRECT |ANSWER✔✔-Disables |DTP What |intervals |are |DTP |frames |sent? |- |CORRECT |ANSWER✔✔-One |second |intervals |during | negotiation |and |every | 30 |seconds |after |that DTP |auto |mode |- |auto |mode |- |CORRECT |ANSWER✔✔-Default, |results |in |no |trunk
DTP |auto |mode |- |desirable |mode |- |CORRECT |ANSWER✔✔-Trunk |negotiated DTP |desirable |mode |- |desirable |mode |- |CORRECT |ANSWER✔✔-Trunk |negotiated What |does |EtherChannel |do? |- |CORRECT |ANSWER✔✔-Bundles |multiple |physical |switch |links | between |switches |into |a |single |logical |link. What |is |EtherChannel |also |referred |as? |- |CORRECT |ANSWER✔✔-Switch |Port |Aggregation What |are |the |advantages |of |EtherChannels? |- |CORRECT |ANSWER✔✔-Fault |tolerance | (redundancy) |and |high |speed |connectivity |between |switches What |is |the |maximum |number |of |ports |Cisco |switches |support |to |a |single |EtherChannel | bundle? |- |CORRECT |ANSWER✔✔-8 |ports What |is |the |maximum |number |of |ports |LACP |supports |to |a |single |EtherChannel |bundle? |- | CORRECT |ANSWER✔✔-16 |ports, |however |only | 8 |ports |can |be |active |simultaneously What |is |LACP? |- |CORRECT |ANSWER✔✔-Link |Aggregation |Control |Protocol, |within |the |IEEE | specification, |provides |a |method |of |control |the |bundling |of |several |physical |ports |together |to | form |a |single |logical |channel. |It |allows |a |network |device |to |negotiate |an |automatic |bundling |of |links |by |sending |LACP |packets |to |the |peer What |are |the |options |for |configuring |an |EtherChannel? |- |CORRECT |ANSWER✔✔-Static |or | Dynamic |Protocols
What |is |PAgP? |- |CORRECT |ANSWER✔✔-Port |Aggregation |Protocol: |Cisco |proprietary | networking |protocol, |which |is |used |for |the |automated, |logical |aggregation |of |Ethernet |switch | ports What |is |the |default |mode |for |LACP? |- |CORRECT |ANSWER✔✔-Passive |Mode What |is |the |default |mode |for |PAgP? |- |CORRECT |ANSWER✔✔-Auto |Mode What |layer |of |the |TCP/IP |model |does |HTTP |belong? |- |CORRECT |ANSWER✔✔-Application |Layer What |layer |of |the |TCP/IP |model |does |POP3 |belong? |- |CORRECT |ANSWER✔✔-Application |Layer What |layer |of |the |TCP/IP |model |does |SMTP |belong? |- |CORRECT |ANSWER✔✔-Application |Layer What |layer |of |the |TCP/IP |model |does |TCP |and |UDP |belong? |- |CORRECT |ANSWER✔✔-Transport |Layer What |layer |of |the |TCP/IP |model |does |ICMP |belong? |- |CORRECT |ANSWER✔✔-Internet |Layer What |does |the |Application |Layer |define? |- |CORRECT |ANSWER✔✔-Does |not |define |the | applications |itself, |but |it |defines |services |that |applications |need. |The |Application |Layer | provides |an |interface |between |software |running |on |a |computer |and |the |network |itself. What |does |the |return |code | 200 |mean |in |an |HTTP |header? |- |CORRECT |ANSWER✔✔-OK What |does |the |return |code | 404 |mean |in |an |HTTP |header? |- |CORRECT |ANSWER✔✔-Not |found
What |layers |of |the |OSI |model |do |not |exist |in |the |current |TCP/IP |model? |- |CORRECT | ANSWER✔✔-Session |and |Presentation |Layers |(5 |and |6) What |standard |is |802.3? |- |CORRECT |ANSWER✔✔-Ethernet In |an |Informal |IEEE |Standard |Name, |what |does |the |T |stand |for |(example: |1000BASE-T)? |- | CORRECT |ANSWER✔✔-Unshielded |Twisted |Pair |(UTP) In |an |informal |IEEE |Standard |Name, |what |does |the |X |stand |for |(example: |1000BASE-LX)? |- | CORRECT |ANSWER✔✔-Fiber What |is |the |Formal |IEEE |Name, |Speed, |Informal |IEEE |Name |of |Ethernet? |- |CORRECT | ANSWER✔✔-802.3 |- | 10 |Mbps |- |10BASE-T What |is |the |Formal |IEEE |Name, |Speed, |Informal |IEEE |Name |of |Fast |Ethernet? |- |CORRECT | ANSWER✔✔-802.3u |- | 100 |Mbps |- |100BASE-T What |is |the |Formal |IEEE |Name, |Speed, |Informal |IEEE |Name |of |Gigabit |Ethernet |over |UTP? |- | CORRECT |ANSWER✔✔-802.3ab |- | 1000 |Mbps |- |1000BASE-T What |is |the |Formal |IEEE |Name, |Speed, |Informal |IEEE |Name |of |Gigabit |Ethernet |over |Fiber? |- | CORRECT |ANSWER✔✔-802.3z |- | 1000 |Mbps |- |1000BASE-LX What |is |the |Formal |IEEE |Name, |Speed, |Informal |IEEE |Name |of | 10 |Gigabit |Ethernet |over |UTP? |- |CORRECT |ANSWER✔✔-802.3an |- | 10 |Gbps |- |10GBASE-T What |does |the |twisting |of |the |wires |in |a |UTP |cable |help |solve? |- |CORRECT |ANSWER✔✔-Helps | cancel |out |most |of |the |EMI |crosstalk |between |the |wires
What |cable |would |you |use |to |connect |a |computer |to |a |switch? |- |CORRECT |ANSWER✔✔- Straight |through |cable What |devices |transmit |on |pins | 3 |and |6? |- |CORRECT |ANSWER✔✔-Switches |and |Hubs What |devices |transmit |on |pins | 1 |and |2? |- |CORRECT |ANSWER✔✔-NICs, |Routers, |APs When |would |you |use |a |Crossover |Cable? |- |CORRECT |ANSWER✔✔-When |the |endpoints | transmit |on |the |same |pair When |would |you |use |a |Straight |through |Cable? |- |CORRECT |ANSWER✔✔-When |the |endpoints | transmit |on |different |pairs What |is |auto-mdix? |- |CORRECT |ANSWER✔✔-In |Cisco |switches, |it |notices |when |the |wrong | cable |is |used |and |automatically |changes |its |login |to |make |it |work. What |is |the |maximum |length |of |many |UTP-based |Ethernet |standards? |- |CORRECT | ANSWER✔✔-100 |meters What |are |the |layers |of |a |fiber |cable |inside |going |outward? |- |CORRECT |ANSWER✔✔-Core, | Cladding, |Buffer, |Strengthener, |Outer |Jacket What |are |the |layers |of |a |fiber |cable |outside |going |in? |- |CORRECT |ANSWER✔✔-Outer |Jacket, | Strengthener, |Buffer, |Cladding, |Core What |is |the |light |source |for |a |fiber |cable? |- |CORRECT |ANSWER✔✔-Optical |Transmitter
What |is |the |purpose |of |the |cladding |in |a |fiber |cable? |- |CORRECT |ANSWER✔✔-Reflect |light | back |into |the |core Which |mode |of |fiber |cable |has |around |one-fifth |the |diameter |of |the |other |mode? |- |CORRECT | ANSWER✔✔-Single-Mode |Fiber What |type |of |light |source |does |Multimode |Fiber |use? |- |CORRECT |ANSWER✔✔-Light |Emitting | Diode |(LED) What |type |of |light |source |does |Single-Mode |Fiber |use? |- |CORRECT |ANSWER✔✔-Laser What |distance |do |standards |of | 10 |Gigabit |over |Fiber |allow? |- |CORRECT |ANSWER✔✔-400 | meters What |does |Multimode |fiber |improve |on? |- |CORRECT |ANSWER✔✔-Improves |the |maximum | distance |over |UTP |and |uses |less |expensive |transmitters |as |compared |to |single-mode What |is |the |cable |type |and |maximum |distance |of |10GBASE-S? |- |CORRECT |ANSWER✔✔- Multimode |- | 400 |meters What |is |the |cable |type |and |maximum |distance |of |10GBASE-LX4? |- |CORRECT |ANSWER✔✔- Multimode |- | 300 |meters What |is |the |cable |type |and |maximum |distance |of |10GBASE-LR? |- |CORRECT |ANSWER✔✔- Single-Mode |- | 10 |kilometers What |is |the |cable |type |and |maximum |distance |of |10GBASE-E |- |CORRECT |ANSWER✔✔-Single- Mode |- | 30 |kilometers
What |is |the |Maximum |Transmission |Unit |(MTU)? |- |CORRECT |ANSWER✔✔-Defines |the | maximum |Layer | 3 |packet |that |can |be |sent |over |a |medium How |many |bytes |and |purpose |of |the |Frame |Check |Sequence |(FCS) |in |an |Ethernet |trailer? |- | CORRECT |ANSWER✔✔-4 |bytes |- |Provides |a |method |for |the |receiving |NIC |to |determine | whether |the |frame |experienced |transmission |errors How |many |bytes |are |the |Ethernet |header |and |trailer? |- |CORRECT |ANSWER✔✔-Header |= | 22 |+ | Trailer |= | 4 |== | 26 |bytes What |does |the |FCS |do |in |the |Ethernet |Trailer? |- |CORRECT |ANSWER✔✔-Gives |the |receiving | node |a |way |to |compare |results |with |the |sender, |to |discover |whether |errors |occurred |in |the | frame How |does |the |FCS |perform |in |the |Ethernet |Trailer? |- |CORRECT |ANSWER✔✔-Sender |applies |a | complex |math |formula |to |the |frame |before |sending |it, |storing |the |result |of |the |formula |in |the | FCS |field. |The |receiver |applies |the |same |formula |to |the |received |frame. |If |the |results |are | different, |an |error |occurred, |and |the |receiver |discards |the |frame What |do |WAN |technologies |define? |- |CORRECT |ANSWER✔✔-The |physical |(Layer |1) |and |data | link |(Layer |2) |protocols |used |to |communicate |long |distances What |duplex |is |a |Leased |Line |link? |- |CORRECT |ANSWER✔✔-Full-Duplex Why |are |they |called |Leased |Lines? |- |CORRECT |ANSWER✔✔-The |fact |that |the |telco |company | does |not |own |the |line |but |instead |pays |a |monthly |lease |fee |to |use |it
What |are |other |names |used |for |Leased |Lines? |- |CORRECT |ANSWER✔✔-Leased |Circuit, |Circuit, | Serial |Line, |Serial |Link, |Point-to-point |link, |Point-to-point |line, |WAN |link What |is |a |Private |Line |(WAN)? |- |CORRECT |ANSWER✔✔-A |line |that |data |sent |over |it |cannot |be | copied |by |other |telco |customers, |so |the |data |is |private What |is |the |transmit |speed |of |a |T1 |line? |- |CORRECT |ANSWER✔✔-1.544 |Mbps Where |do |Telcos |put |their |equipment? |- |CORRECT |ANSWER✔✔-In |buildings |called |Central | Offices |(COs) What |layer |of |tranmission |service |do |Leased |Lines |define? |- |CORRECT |ANSWER✔✔-Physical | (Layer |1); |many |companies |and |standards |organizations |have |created |data-link |protocols |to | control |and |use |Leased |Lines What |is |the |High-Level |Data |Link |Control |Protocol? |- |CORRECT |ANSWER✔✔-Bit-oriented |code- transparent |synchronous |data |link |layer |protocol |used |for |Leased |Lines. |It |performs |less |work | than |Ethernet |because |the |frame |can |only |go |one |place; |to |the |other |end |of |the |line. |While | HDLC |has |an |address |field, |the |destination |is |implied. What |differentiates |the |HDLC |header |from |ISO |to |Cisco |standard? |- |CORRECT |ANSWER✔✔-The |Cisco |standard |header |has |the |'Type' |field |so |routers |understand |which |routing |protocol |the | frame |holds What |HDLC |field |is |equivalent |to |the |Preamble |and |SFD |fields |in |an |Ethernet |Frame? |- | CORRECT |ANSWER✔✔-Flag What |does |the |Flag |do |in |an |HDLC |header? |- |CORRECT |ANSWER✔✔-Lists |a |recognizable |bit | pattern |s |that |the |receiving |nodes |realize |a |new |frame |is |arriving
What |is |ROM? |- |CORRECT |ANSWER✔✔-Stores |a |bootstrap, |or |boothelper, |program |that |is | loaded |when |the |switch |first |powers |on. |This |bootstrap |program |then |finds |the |full |Cisco |IOS | image |and |manages |the |process |of |loading |Cisco |IOS |into |RAM, |at |which |point |Cisco |IOS |takes |over |operation |of |the |switch What |is |NVRAM? |- |CORRECT |ANSWER✔✔-Non-volatile |RAM, |stores |the |initial |or |startup | configuration |file |that |is |used |when |the |switch |is |first |powered |on |and |when |the |switch |is | reloaded What |is |the |Content-Addressable |Memory |(CAM) |table? |- |CORRECT |ANSWER✔✔-The |MAC | Address |Table What |are |the |default |settings |of |a |Cisco |Catalyst |Switch? |- |CORRECT |ANSWER✔✔-- |Interfaces | are |enabled |by |default
- |All |interfaces |are |assigned |VLAN | 1
- |10/100 |and |10/100/1000 |interfaces |use |autonegotiation
- |MAC |learning, |forwarding, |and |flooding |logic |works
- |STP |is |enabled What |command |is |used |to |show |the |dynamically |learned |MAC |addresses? |- |CORRECT | ANSWER✔✔-show |mac |address-table |dynamic What |command |removes |the |VLAN |configuration |details |- |CORRECT |ANSWER✔✔-delete | vlan.dat What |is |the |default |aging |timer |for |a |MAC |Address |table? |- |CORRECT |ANSWER✔✔-300 | seconds
What |does |a |switch |do |when |the |MAC |Address |table |is |full? |- |CORRECT |ANSWER✔✔-Times | out |the |oldest |record |in |the |table What |does |the |login |command |do |on |a |line |interface? |- |CORRECT |ANSWER✔✔-Tells |IOS |to | enable |the |user |of |a |single |shared |password |with |no |username |on |this |line, |so |that |the |switch |asks |the |user |for |the |password How |do |you |create |local |users |& |associated |them |to |lines? |- |CORRECT |ANSWER✔✔-'username | |password |' 'line | |#' 'login |local' What |commands |are |necessary |for |ssh? |- |CORRECT |ANSWER✔✔-'hostname |' 'ip |domain-name |' crypto |key |generate |rsa' What |can |you |add |to |'crypto |key |generate |rsa' |to |set |the |modulus |value? |- |CORRECT | ANSWER✔✔-'modulus |#' What |command |would |you |use |to |only |allow |ssh? |- |CORRECT |ANSWER✔✔-'transport |input | ssh' What |modulus |value |should |be |at |least |used |with |sshv2? |- |CORRECT |ANSWER✔✔-768-bit |key How |do |you |override |default |settings |of |sshv1 |support? |- |CORRECT |ANSWER✔✔-'ip |ssh | version |2'
