Friday Tech Challenge Results


Aug 24, 2011 11:35 AM
Aug 24th, 2011

Friday_Tech_Challenge.JPGAs mentioned before, every Friday we'll challenge you with five questions on a particular topic. If you answer them all correctly and share the quiz on your wall, you'll be entered in the draw to win a US $25 Visa gift card. We know the prize money is trivial & the real motivator for you is to top the charts. If you answered all questions correctly, then you'll find your name below and 5 points against your name for the week that you answered them correctly. If you see a smiley face next to your name, then you are the lucky winner chosen randomly, for a visa gift card of $25.00. We'll be sending you a message on Facebook. If you don't receive the message, please contact us at

For complete rules, visit

Contestant NameWk1Wk2wk3Wk4Wk5Wk6Wk7Wk8Wk9wk10
Esra Bilgin5

Mando Costilla5

Mike Singleton55

John Blakley 5

Piotr Ciesielczyk



Cisco Hany

Varun Rao


John Stott


Harrie Kiarie


Emre A-Aymen


Manish Gupta


Chauhan K


Akhilendra Tomar


Tephy Bustaman


Lee Jorissen


Dan Devlin


Ventzislav Metev


Si Val


Nitin Jain

Mikheil Govorov


Mel Chandler

Luis Trindade

Jens Schneider

Ray Cruz


Answers to questions from week-1 on the "Security" topic.

1. Which Can control per-user authorization on a company router?

A Radius


C IPsec


Answer : B

2. Cisco IOS IPS sends IPS alert messages using which 2 protocols?


B Syslog and LDAP

C Syslog and SDEE


Answer C

3. Which of the following is the most effective technique to prevent  source IP address spoofing?

A  RFC 1918 filtering

B  policy based routing (PBR)

C Unicast reverse path forwarding(uRPF)

D lock and key ACL

Answer C

4. How many useable hosts can you get from a /30 subnet mask?

A 2

B 4

C 8

D 30

Answer A

5. What is a stream cipher?

A cipher that encrypts a byte at a time

B cipher that encrypts a block at a time.

C Stream is not a valid type of cipher

D Cipher that encrypts one bit at a time

Answer D

Answers to questions from week-2 on the "LAN/SW, RP" topic.

1. Which of the following is correct compressed form of 2001:0:0:0:0DB8:0:0:417A?

A 2001:::0DB8::417A

B 2001:0DB8:0:0:417A

C 2001::0DB8:0:0:417A

D 2001:::0DB8:0:0:417A

Answer C

2. Which statement is true about using IPv4 and IPv6 together in a network?

A   IPv6 and IPv4 can be simultaneously assigned to a host but not to a router’s interface.

B  IPv6 provides for more host IP addresses while IPv4 provides more network addresses

C  IPv6 allows a host to create its own IP address that will allow it to communicate to other devices in the network configured using DHCP. IPv4 does not provide a similar capacity to its hosts.

D Host configuration option for IPv4 can either be statically assigned or assigned via DHCP, while in IPv6 it can be statically assigned only.

Answer C

3.  Which command must be globally enabled on a Cisco Router to support IPv6?

A  Ip routing ipv6

B Ipv6 unicast-routing

C Ipv6 routing

D Ip classless

Answer B

4. During the IPv6 auto configuration, what does the device append to the 64-bit prefix it receives from Router to create its IPV6 address?

A  A pseudorandom generated number.

B  Its locally configured IPv4 address.

C  The DHCP-supplied device id.

D  Its Mac-address.

Answer D

5. Which statement is true for the difference between IPv4 and Ipv6 header?

A  An IPv6 header is half the size of IPv4 header.

B  An IPv4 header includes a checksum, while IPv6 header doesn’t.

C  A router has to recompute the checksum of an IPV6 packet when decrementing the TTL.

D  An IPv6 header has twice as many octets as an IPv4 header.

Answer B

Answers to questions from week-3 on the "Wireless" topic.

1 With Cisco Clean Air, how many device clusters and device records are supported by a 5500 WLC?

A 2500 device clusters, 10,000 device records

B 1500 device clusters, 50000 device records

C 75 device clusters, 300 device records

D 750 device clusters, 3000 device records

Answer  A

2 Lightweight access points will use which of the following methods to identify candidate controllers using Layer 3 LWAPP/CAPWAP discovery?

A DHCP option 43

B DNS discovery


D Locally stored controller IP address discovery

E Local subnet discovery

F All of the above

Answer  F

3 When configuring Mobility groups with Cisco Unified Wireless solution, all the controllers which are part of the same mobility group should be configured with the same virtual interface IP address. True or False?

A True

B False

Answer  A

4 What is the maximum size of the local database on a WLC?

A 512

B 2048

C 128

D 4096

Answer  B

5 What is the maximum number of wired clients that can be connected to the Workgroup Bridge (WGB)?

A 10

B 5

C 25

D 20

Answer  D

Answers to questions from week-4 on the "Voice" topic.

1.What is required to convert a G711ulaw call to G729?

A Voice termination resources

B Conferencing resource

C Converter resources

D Transcoding resources

Answer D

2.Which worldwide prefix scheme was developed by the ITU to standardize numbering plans?

A E.164

B G.114

C G.164

D E.114

Answer A

3.Which command is used to designate a source IP address for a voice gateway?

A h323-gateway voip interface

B h323-gateway voip h323-id

C h323-gateway voip bind srcaddr

D voice service

Answer C

4.Which of the following applications supports audio and video conferencing?

A Conference Connection

B Unity


D Meeting Place

Answer D

5.Identify the three components of a Unity installation, including required third-party products.

A Directory Server

B CCM Server

C Message Store

D Unity Server

Answer: A,C,D

Answers to questions from week-5 on the "Datacenter" topic.

1. Which of these statements is not correct about Cisco ACE appliance?

A Has features like hardware based compression, Flash Forward and SSL acceleration.

B Has Role Based Access Control (RBAC) and supports upto 250 virtual devices with failover.

C Provides layer 4 and 7 content switching, application security and protection from DNS based DDoS attacks.

D Consolidates data center by reducing the neumber of servers and load balancers required.

Answer B

2. Nexus 1000v requires one to manually install VUM package when using VEM. True or False?

A True

B False

Answer B

3. Which of these statements is true about the feature level for Nexus 1000v?

A The feature level does not change after a switch upgrade.

B The feature level is persistent even after reload.

C It is not recommended to downgrade feature level.

D Feature level gets automatically upgraded after upgrading all VEM.

Answer D

4. Which boot flag value has to be entered to reset the password in a WAE after connecting to a console port?

A 0x2142

B 0x2000

C 0x4000

D 0x8000

Answer D

5. UCS is compatabile with which of the following storage protocols?





E All of the above

Answer E

Answers to questions from week-6 on the "Security" topic.

1. What is the default TCP port used to remotely manage a Cisco Secure ACS v4.x software application server?

A. 2000

B. 2001

C. 2002

D. 2005

E. 2020

Answer: C

2. Which three of these security properties does TLS v1.2 provide?

A. Confidentiality

B. Integrity

C. Availability

D. Authentication

E. Authorization

Answer: A B D

3. Which one of these is not offered by Cisco IPS Device Manager? (Cisco IDM).

A. Interface Status

B. Global Correlation Reports

C. Sensor Information

D. CPU, Memory, and Load

E. Top Signatures

Answer: E

4. Which three of these are properties of Encapsulating Security Payload (ESP) protocol (in non-

tunnel mode )? (Choose three)

A Uses IP protocol 50

B Provides confidentiality of the IP header

C Provides data integrity

D Provides data confidentiality

E Uses IP protocol 51

Answer: A C D

5. Which one of these does not correctly describe the advantages of GETVPN as compared to traditional IPSec?

A. Eliminates the need for tunnels, and therefore scales better

B. Provides always-on full mesh encryption capability.

C. Provides native multicast encryption.

D. Allows all members to dynamically discover each other with no static peer configuration required.

E. Can take advantage of the existing routing infrastructure, and does not require overlay routing.

Answer: D

Answers to questions from week-7 on "LAN, SW and RP" topic.

1.    After DUAL calculation, a router has identified a successor route, but no routes have qualified as feasible successor. In the event the successor goes down, what process will EIGRP use to choose the new successor?

A.    EIGRP will find the interface with the lowest MAC address.

B.    The route will transition to the active state.

C.    The route will transition to the passive state.

D.    EIGRP will automatically use the route with the lowest feasible distance (FD).

Answer: B

2.    EIGRP has been configured to operate over Frame Relay multipoint connections. What should the bandwidth command be set to?

A.    The CIR rate of the lowest speed connection multiplied by the number of circuits .

B.    The CIR rate of the lowest speed connection.

C.    The CIR rate of the highest speed connection.

D.    The sum of all the CIRs divided by the number of connections.

Answer: A

3.    An administrator types in the command router ospf 1 and receives the error message: “OSPF process 1 cannot start.” (Output is omitted.) What should be done to correctly set up OSPF?

A.    Ensure that an interface has been configured with an IP address.

B.    Ensure that an interface has been configured with an IP address and is up.

C.    Ensure that IP classless is enabled.

D.    Ensure that the interfaces can ping their directly connected neighbors.

Answer: B

4.    Which command displays the IBGP and EBGP neighbors that are configured?

A.    Show ip bgp

B.    Show ip bgp paths

C.    Show ip bgp peers

D.    Show ip bgp summary

Answer: D

5.    BGP contains two paths to a destination. Assuming both routes were originated locally and have an equal weight. What will be the next determining factor in choosing the best path?

A.    Lowest MED

B.    Highest local preference

C.    Lowest neighbor IP address

D.    Lowest origin code

Answer: B

Answers to questions from week-8 on "Voice" topic.

1. Which VoIP component is used to forward calls between different types of networks?

A.    Call agent

B.    Gatekeeper

C.    Gateway

D.    MCI

Answer: C

2. Which two of the following parameters are configurable on an FXS interface? (Select the two best answers.)

A.    Signal type

B.    Ring number

C.    Ring frequency

D.    Dial type

Answer: A & C

3. Choose the two correct commands to enable H.323 to SIP  interworking. (Select two)

A.    allow-connections h323 to sip

B.    allow-connections sip to h323

C.    allow-connections sip to sip

D.    allow-connections h323 to h323

Answer: A & B

4.Which of the following best describes a numbering plan ?

A.    It determines routes between source and destination devices.

B.    It defines a telephone number of a voice endpoint or application.

C.    It performs digit manipulation when sending calls to the PSTN.

D.    It performs least-cost routing for VoIP calls.

Answer: B

5. Which command must be globally enabled on a Cisco Router to support IPv6?

A.    Ip routing ipv6

B.    Ipv6 unicast-routing

C.    Ipv6 routing

D.    Ip classless

Answer : B

Answers to questions from week-9 on "Wireless" topic.

1. Which one of these is not a type of interface on a WLC?

A. Management Interface

B. Inside interface

C. Virtual Interface

D. Service port Interface

Answer: B

2. Link aggregation (LAG) is supported on 2100 series WLCs. True or Flase?

A. True

B. False

Answer: B

3. Control And Provisioning of Wireless Access Points use which two ports for communication? (select 2)

A. 12222

B. 12223

C. 5346

D. 5246

E. 5247

F. 5347

Answer: D, E

4. How many VLANs does a controller support?

A 4096

B 512

C 520

D 2048

Answer: B

5. Can a WLAN Client be used to manage a WLC?

A.      Yes

B.      No

Answer: A

Answers to questions from week-10 on "Wireless" topic.

1. Which of this is not a hardware component of UCS?

A. B200 series blade server

B. Fabric Extender

C. Nexus 5000 series switch

D. Converged Network Adapter (CNA)

Ans: C

2. How many virtual devices can be configured in Cisco ACE module?

A.    250

B.    150

C.    300

D.    5

Ans: A

3. Which of the following is not a UCS C series server model?

A. C200

B. C210

C. C410

D. C460

Ans: C

4. Does Nexus 1010 supports native vlan?

A. True

B. False

Ans: B

5. In case of ACE, the syntax “my\.website\..*” will match to which of the following URL’s? Choose two.





Ans: C and D

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