D. The queue manager will attempt to deliver the nonpersistent messages more quickly, but their availability on the receiving queue manager might be delayed while waiting for the channel to commit them.
A bus company is implementing a solution which will display in real-time the arrival information of the next bus on the bus stop sign. Each bus is sending information about its position at regular
intervals. What is the best way of implementing this solution given that there is limited bandwidth
for communication? The bus stop sign:
subscribes to messages published by the bus
queries a central system for bus position using SOAP over HTTP
replicates its own database every few minutes with a database stored on a central system
sends a message with a request every few minutes to a central system in order to query bus position. All replies are compressed.
A company is implementing a new solution on HP-UX that will send orders to the Order Processing system, which is a WebSphere MQ application on the mainframe. Which of the
following configurations for the new solution on HP-UX provides the function needed for this
scenario? The solution on HP-UX would run:
only as a client, using the WebSphere MQ client on HP-UX to access the Order Processing system.
only as a server, using the WebSphere MQ server on HP-UX to access the Order Processing system.
as a client or full server, using either the WebSphere MQ client or a full WebSphere MQ server on HP-UX to access the Order Processing system.
as a standalone application, accessing a WebSphere MQ-enabled adapter on the mainframe
to access the Order Processing system.
The use of Shared Queues on z/OS provides which of the following high availability benefits that are not available on distributed platforms?
A platform-based failover capability to provide access to queue data for processing.
The ability to have another queue manager process messages in the event a primary queue manager fails.
Workload balancing to allow for multiple MQ Enabled applications to process messages in a dual production lane configuration.
In the event of a queue manager failure, the ability of one of its peers to provide uninterrupted
service to the queues that the failed queue manager had been processing.
A solution designer is looking to implement a hig2h5ly available WebSphere MQ solution. In the event of a queue manager failure, there is a requirement for several backup queue managers to get and process the messages from the primary input queue that was being processed by the
failed queue manager. Considering the advances in high availability options (e.g. HACMP, WebSphere MQ clustering), which of the following deployment options is most valid?
z/OS, AIX, Windows
z/OS, AIX, Windows, Red Hat Enterprise Linux
Which of the following contains the best mix of items to utilize in a queue name?
Application Identifier, Function
Queue Purpose, Object Type, Function
Application Identifier, Environment Identifier, Location
Environment Identifier, Object Type, Application Identifier
A company is using WebSphere MQ V7 publish/subscribe to publish status information about an application on the topic string ustomer/status?A company is using WebSphere MQ V7
publish/subscribe to publish status information about an application on the topic string
?ustomer/status? A new MQI application wants to subscribe to the status information, but is only interested in the information when the status is navailable? TheA new MQI application wants to subscribe to the status information, but is only interested in the information when the status is
?navailable? The solution designer is evaluating ways to design the solution so that the application only receives a subscription when the status is navailable?solution designer is evaluating ways to design the solution so that the application only receives a subscription when the status is ?navailable? The company does not mind writing additional code as long as it does not impact existing subscribers, but they do not want to change the topic. Which set of product(s) can provide the needed publish/subscribe function using the least components?
WebSphere MQ V7.0
WebSphere MQ V7.0 with WebSphere Message Broker
WebSphere MQ V7.0 with the WebSphere MQ Explorer Publish/Subscribe plug-in SupportPac
WebSphere MQ V7.0 with WebSphere Message Broker and the WebSphere MQ Explorer Publish/Subscribe plug-in SupportPac
A designer is asked to explain the scope of message encryption provided by the SSL support in WebSphere MQ. Which of the following is the most accurate?
Messages are encrypted by the sending channel agent and decrypted by the receiving channel agent
Messages are encrypted when they are put on the transmission queue and decrypted by the receiving channel agent
Messages are encrypted from the time they are put by the application, up to when they are retrieved by the receiving application program's MQGET call.
The time when messages are encrypted and 2d6ecrypted is variable, and is controlled by both
QMGR and CHANNEL attributes.
There is concern about the security of an application data, so the solution designer is asked to explain what protection is available from SecureThere is concern about the security of an application? data, so the solution designer is asked to explain what protection is available from
Secure Sockets Layer (SSL). Which of the following best describes the SSL support in base
confidentiality (data encryption)
authentication and confidentiality (data encryption)
authentication, confidentiality (data encryption) and integrity
authentication, confidentiality (data encryption), integrity and non-repudiation
A company utilizes virtualization technologies and frequently moves workloads between servers and data centers. A WebSphere MQ solution designer is attempting to plan the MQ naming standards, and wants to provide for the greatest level of architectural flexibility and portability.
Which of the following is NOT a recommended best practice to meet these goals?
Use alias queues and/or model queues with the application configuration.
Use a configuration file for the application which contains the environment specific queue names.
Use generic names for MQ objects inside applications to avoid hard-coding the actual names.
Use full uppercase for all objects and avoid forward slash (/) and percent (%) special characters, to prevent portability issues.
In order from the most to the least flexible, which is the correct integration styles in terms of flexibility and reuse?
Direct connectivity, message queuing, message brokering
Message brokering, direct connectivity, message queuing
Message brokering, message queuing, direct connectivity
Message queuing, message brokering, direct connectivity
000-061 Exam InformationIBM Dynamic Infrastructure Technical Support LeaderExam NumberCode : 000-061Exam Name : IBM Dynamic Infrastructure Technical Support LeaderQuestions and Answers : 83 Q&As
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CWNA PW0-104: Practice Exam QUESTION NO: 1 What word describes the bending of an RF signal as it passes between mediums of different density? A. Diffraction B. Reflection C. Refraction D. Diffusion E. Scattering Answer: C QUESTION NO: 2 What causes an excessively high Voltage Standing Wave Ratio (VSWR) in an 802.11 WLAN? A. An impedance mismatch between devices in series with the main RF signal B. Reflected DC voltage on the main RF signal line C. Refracted RF signal peaks along the main signal path D. Crosstalk (inductance) between adjacent conductors Answer: A QUESTION NO: 3 What factors affect the distance that an RF signal can be effectively received? A. Transmitting station's antenna type B. Receiving station's radio sensitivity C. Fresnel zone blockage D. Power over Ethernet (PoE) usage E. Antenna connector type F. Distance between access points Answer: A,B,C QUESTION NO: 4 As an RF wave propagates through space, the wave front experiences natural expansion. What is the detrimental effect of this expansion in a WLAN system? "Pass Any Exam. Any Time." 2 Be IT C er tif ie d. co m CWNA PW0-104: Practice Exam A. Linear Diffusion Loss B. Signal Attenuation C. Transmission Obfuscation D. Fresnel Zone Thinning E. Azimuth Inflation Answer: B QUESTION NO: 5 Given: ABC Company's network administrator was just asked to install a 5 GHz OFDM bridge link between two buildings. He connected a WLAN bridge with a 50-ohm output to a 50ohm RF coaxial cable. He connected the other end of the RF coaxial cable to a 25-ohm, 6 dBi Yagi antennA. What is the maximum VSWR between the WLAN bridge and the Yagi antenna? A. 1.0:1 B. 1.1:1 C. 1.2:1 D. 1.5:1 E. 2.0:1 F. 1.0:2 Answer: E QUESTION NO: 6 Given: Return Loss is the decrease of forward energy in a system because some of the power is being reflected back toward the transmitter. What can cause a high return loss in an RF transmission system? A. A Voltage Standing Wave Ratio (VSWR) of 1.5:1 B. An impedance mismatch between devices in the RF system C. Cross-polarization of the RF signal as it passes through the RF system D. The use of multiple connector types in the RF system (e.g. N-type and SMA-type) E. Low output power at the transmitter and use of a high-gain antenna Answer: B Be IT "Pass Any Exam. Any Time." - C er tif ie d. co m 3 CWNA PW0-104: Practice Exam QUESTION NO: 7 What factor is NOT taken into account when calculating the System Operating Margin of a pointto-point outdoor WLAN bridge link? A. Operating frequency B. Tx antenna gain C. Tx power D. Rx cable loss E. Antenna height F. Rx sensitivity G. Distance Answer: E QUESTION NO: 8 Answer: B QUESTION NO: 9 In a long-distance RF link, what statement about Fade Margin is true? A. Fade Margin is an amount of signal strength in addition to the Link Budget. B. The Fade Margin of a long-distance RF link does not account for antenna gain. C. Fade Margin is rarely taken into account on a long-distance RF link. D. Fade Margin and Jamming Margin are synonymous, interchangeable terms. Answer: A Be IT A. 50mW B. 250mW C. 500mW D. 750mW E. 1000mW "Pass Any Exam. Any Time." - C er tif ie Given: A WLAN transmitter that emits a 200 mW signal is connected to a cable with a 9 dB loss. if the cable is connected to an antenna with a 10 dBi gain, what is the EIRP at the antenna element? d. co m 4 CWNA PW0-104: Practice Exam QUESTION NO: 10 Which units of measure are used to describe relative power level changes? A. dBm B. dBi C. dB D. mW E. dBW Answer: B,C QUESTION NO: 11 Given: A 802.11 WLAN transmitter that emits an 80 mW signal is connected to a cable with 3 dB loss. The cable is connected to an antenna with a 16 dBi gain. What is the resultant antenna power output (EIRP)? A. 160mW B. 320mW C. 800mW D. 1200mW E. 1600mW Answer: E QUESTION NO: 12 What factors are required to establish a high quality 2.4 GHz point-to-point RF link at a distance of 3 miles (5 kilometers)? A. Accurate Link Budget calculations B. Accurate Earth Bulge calculations C. System Operating Margin (SOM) of at least 20 dB D. A minimum antenna gain of 13dBi E. A Fresnel Zone that is at least 60% clear of obstructions Answer: A,E Be IT "Pass Any Exam. Any Time." - C er tif ie d. co m 5 CWNA PW0-104: Practice Exam QUESTION NO: 13 What phrase defines Equivalent Isotropically Radiated Power (EIRP)? A. Transmitter output power plus attached cable and connector loss B. Transmitter output power only C. Power supplied to the antenna plus antenna gain D. Reflected power due to an impedance mismatch in the signal path E. Power supplied to an RF antenna Answer: C QUESTION NO: 14 What term describes the effect of increasing the intensity of an RF wave when the RF antenna lobe is focused in a desired direction? A. Directional Extension B. Active Amplification C. Beam Compression D. Passive Gain E. Phased Propagation Answer: D QUESTION NO: 15 Which antenna types can be used in a scenario where simple receive diversity is required? A. Omni-directional B. Patch C. Yagi D. Grid E. MIMO Sector F. Sector Array Answer: A,B QUESTION NO: 16 Be IT "Pass Any Exam. Any Time." - C er tif ie d. co m 6 CWNA PW0-104: Practice Exam While working on a presentation document in a conference room equipped with a wireless network, you notice that, as you turn your laptop in different directions, your wireless signal strength changes. What statement describes the RF signal property that is primarily responsible for this change in signal strength? A. The RF signal's amplitude is changing due to a change in the visual line-of-sight. B. The RF signal's wavelength is being affected by varying antenna gain. C. The RF signal's multipath is changing the amount of RF absorbed by nearby objects. D. The RF signal's phase is oscillating due to electromagnetic interference (EMI). E. The RF signal's polarization is different than the receiving antennA. Answer: E Answer: A QUESTION NO: 18 What characteristics determine the diameter of the first Fresnel Zone for a 802.11 WLAN link? A. Antennabeamwidths B. Size of the antenna elements C. Distance between the antennas D. Frequency of the transmission E. Transmission power F. Antenna gain Answer: C,D QUESTION NO: 19 What statements about the beamwidth of an RF antenna are true? "Pass Any Exam. Any Time." 7 Be IT C er tif A. Beamwidth B. Range C. Dissipated heat D. Polarization radius E. Fresnel Zone ie d. co What antenna characteristic decreases as the gain of the antenna is increased? m QUESTION NO: 17 CWNA PW0-104: Practice Exam A. The lower the gain of an antenna, the more narrow one or bothbeamwidths become. B. The RF signal stops propagating at the beamwidth borders. C. Beamwidth is calculated by the -3 dB points from the center axis, both horizontally and vertically. D. Horizontalbeamwidth is displayed (in degrees) on the antenna Azimuth Chart. E. Beamwidth is calculated using the length of the antenna element. Answer: C,D QUESTION NO: 20 What antenna technologies are used to help overcome null areas of RF coverage due to multipath? A. Simple Diversity B. Phase Dispersion C. Circular Polarization D. Beam Linearization E. TransmitBeamforming F. Spectral Clarification Answer: A,E QUESTION NO: 21 ABC Company has just purchased a 6 dBi patch antennA. After performing some tests with the 6 dBi antenna, they have concluded that more antenna gain is needed to cover their long hallway. When choosing an antenna with higher gain, what other antenna characteristic will also change? A. Fresnel Zone size B. Maximum input power C. Beamwidths D. Return Loss E. VSWR Ratio Answer: C QUESTION NO: 22 Given: XYZ Company is constructing a building-to-building ERP-OFDM bridge link using patch antennas. The buildings are 4 blocks apart in the middle of "Pass Any Exam. Any Time." - Be IT C er tif ie d. co m 8 CWNA PW0-104: Practice Exam a large city. XYZ Company is using the rooftop of each building for antenna placement. There are several buildings closely spaced between the two locations, but there is a narrow visual line-of-sight. The link does not work as XYZ Company had hoped. What would you do to rectify this problem at the lowest possible cost? A. Change the antennas to high gain parabolic dish or grid antennas with a narrowbeamwidth. This will sufficiently shrink the Fresnel Zone to an area where other buildings are not impeding. B. Decrease the output power to the minimum allowed by the link budget calculation. This will minimize the size of the Fresnel Zone and increase the quality of the wireless link. C. Use a vertically-polarized antenna on one building and a horizontally-polarized antenna on the other to decrease the size of the Fresnel Zone. Cross-polarization will shrink the Fresnel Zone size while allowing the output power to remain the same. D. On top of each building, place a mast or tower that is tall enough to completely clear the Fresnel Zone of obstructions between the two antennas. The exhibit illustrates the azimuth and elevation for what type of antenna? A. Indooromni-directional B. Outdoor 20 degree verticalyagi C. Outdoor 120 degree horizontal sector D. Indoor 60 degree horizontal patch E. Outdoor 10 degree vertical grid "Pass Any Exam. Any Time." 9 Be IT C er tif QUESTION NO: 23 ie d. Answer: D co m CWNA PW0-104: Practice Exam Answer: C QUESTION NO: 24 What are some common specifications for 802.11 WLAN antennas? A. Spectral Resilience B. Operating Temperature C. Impedance in Ohms D. AzimuthBeamwidth E. Return Loss Rating F. Maximum Input Power Answer: B,C,D,F QUESTION NO: 25 What is the most common mount type for connecting a WLAN antenna to an outdoor mast (pole)? A. Suction cups with thread 000-376ed posts B. Perforatedradome enclosure C. Magnetic mount with bulkhead adapter D. U-bolt with base clamp E. Tilt-n-swivel universal mount with ratchet adjustment Answer: D QUESTION NO: 26 Be IT "Pass Any Exam. Any Time." - C er tif ie d. co m 10 CWNA PW0-104: Practice Exam Answer: B QUESTION NO: 27 Given: XYZ Corporation is experiencing connectivity problems with their existing building-tobuilding bridge link. A block wall on the roof of one building is partially blocking the Fresnel Zone, and the connection is dropping many frames. The administrator moves the antenna to an area not obstructed by the block wall and then realizes the RF cable cannot reach the new location. if an extension cable is used, what are the likely results? A. The data throughput rate will increase because VSWR will decrease. B. The Equivalent Isotropically Radiated Power (EIRP) will decrease. C. The antenna coverage area will decrease. D. Output power at the Intentional Radiator will decrease due to increased cable resistance. E. The likelihood of a direct lightning strike will increase, placing the entire WLAN system at risk. Be IT "Pass Any Exam. Any Time." - C er A. Grounding pipe clamp B. U-bolt antenna mount C. N-type connector housing D. Pole-mount lightning arrestor vice E. Mobile amplifier bracket F. OutdoorPoE injector frame tif ie d. co Identify the type of WLAN hardware in the exhibit. m 11
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