Download IBM z Systems Technical Support V7.C9030-644.PracticeTest.2018-02-15.38q.vcex

RoCE Express provides an RDMA capable network adapter providing access to RDMA over Converged Ethernet (RoCE). RoCE provides an optimized network interconnect for System z communications. Along with RoCE Express, z/OS provided a new RDMA based solution called Shared Memory Communications over RDMA (SMC-R). SMC-R is a sockets based solution providing transparent access to RoCE for TCP sockets applications over standard Ethernet.   The IBM System z13 introduces the capability to share (virtualize) the 10GbE RoCE Express feature among multiple (up to 31) LPARs (or z/VM guest virtual machines) using standardized PCIe virtualization (SR-IOV) technology. When RoCE Express is exploited by z/OS with SMC-R, the combined solutions provide two key value points:Improved latency that can provide improved transaction rates for latency sensitive transactional based workloads, and Lower CPU cost for workloads that transfer larger payloads (i.e. analytics, streaming, FTP, big data, data replication, web services, etc.) References: https://www.ibm.com/developerworks/community/blogs/IBMCommserver/entry/ibm_system_z_10gbe_roce_express_virtualization?lang=en

Incorrect Answers:A: The IBM Integrated Coupling Adapter (ICA SR), introduced on the IBM z13 and now available on the IBM z13s.C: Listed below are the minimums and maximums of processor units (PUs) that may be purchased permanently.   D: The IBM 2965 Model N10 supports 64 to 984 GB of memory.References: https://www-01.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_sm/1/877/ENUS2965-_h01/index.html&lang=en&request_locale=en

The capabilities of running heterogeneous environments on a System z platform and the IBM MobileFirst framework enable an organization to fully support a mobile strategy. The mobile environment, representing the System of Engagement, can integrate with existing back-end core transactional services and data on the System z platform, representing the Systems of Records. The products that are available within the MobileFirst framework can deliver the runtime environment, mobile device management, security, analytics, and development of the application and data platforms in a mobile environment on the System z platform. Figure: End-to-end security checkpoints   MEAP server is protected by a security gateway. The mobile client must authenticate and validate credentials upon encountering the gateway. Note: CICS stands for "Customer Information Control System." It is a general-purpose transaction processing subsystem for the z/OS operating system. CICS provides services for running an application online, by request, at the same time as many other users are submitting requests to run the same applications, using the same files and programs.References: http://www.redbooks.ibm.com/abstracts/tips1162.html?Open

References: https://www.ibm.com/support/knowledgecenter/5148-21L/p8haj/hmcinstall.htm

A sysplex is a collection of z/OS systems that cooperate, using certain hardware and software products, to process work. It is a clustering technology that can provide near-continuous availability. A Parallel Sysplex is a sysplex that uses multisystem data-sharing technology A Parallel Sysplex is a cluster of IBM mainframes acting together as a single system image with z/OS. Used for disaster recovery, Parallel Sysplex combines data sharing and parallel computing to allow a cluster of up to 32 systems to share a workload for high performance and high availability. References: https://www.ibm.com/support/knowledgecenter/zosbasics/com.ibm.zos.zmainframe/zconc_clusterPlSys.htm

A hybrid cloud is an integrated cloud service utilizing both private and public clouds to perform distinct functions within the same organization. References: https://www.interoute.com/what-hybrid-cloud

The z Systems Security Portal is intended to help you stay current with security and system integrity fixes by providing current patch data and associated Common Vulnerability Scoring System (CVSS) ratings for new APARs. Security Notices are also provided to address highly publicized security concerns. References: https://www-03.ibm.com/systems/z/solutions/security_subintegrity.html

Temporary upgrades Three types of upgrades are provided through the following offerings:- On/Off Capacity on Demand (On/Off CoD) - This offering allows you to temporarily add additional capacity or specialty engines due to seasonal activities, period-end requirements, peaks in workload, or application testing. - Capacity Backup (CBU)  This offering allows you to replace model capacity or specialty engines to a backup server in the event of an unforeseen loss of server capacity because of an emergency. - Capacity for Planned Events (CPE)  This offering allows you to replace model capacity or specialty engines due to a relocation of workload during system migrations or a data center move. You can order CPE or CBU temporary upgrade records or related entitlements, such as CBU tests, using the CIU application through Resource Link or calling your IBM sales representative. You can only order an On/Off CoD temporary upgrade using the CIU application through Resource Link. References: IBM Z Capacity on Demand User's Guide (2017), page 2

zEDC is a compression acceleration capability, that enables you to do hardware-based data compression and decompression. It is designed for high-performance, low-latency compression, to reduce processor use, optimize the performance of compression-related tasks, improve disk usage, and optimize cross-platform exchange of data. The compression format generated and used by zEDC Express is the Request for Comments (RFC) 1951 DEFLATE format, an industry standard that compresses data using the Lempel-Ziv 1977 (LZ77) and Huffman coding algorithms. Incorrect Answers:A: In 2013 the IBM zEC12 (zBC12) introduced the 10GbE RoCE Express feature. RoCE Express provides an RDMA capable network adapter providing access to RDMA over Converged Ethernet (RoCE). RoCE provides an optimized network interconnect for System z communications.References: Reduce Storage Occupancy and Increase Operations Efficiency with IBM zEnterprise Data Compression (February 2015), page 2

Network Time Protocol (NTP) client support The external time source (ETS) function of STP can provide accurate time relative to an external time standard for data processing applications. The ETS function is only available when an STP-only CTN is configured. The external time source can be configured by dialing out from the HMC to an available time service such as Automated Computer Time Service (ACTS). Dialing out provides time accuracy for the z Systems timing network only. This function has been generally available since January 31, 2007 when STP became generally available. An alternative method to obtain accurate time is from an NTP server. Simple Network Time Protocol (SNTP) client support is added to the Server Time Protocol code to interface with NTP servers. NTP client support can provide the same time across heterogeneous platforms in an enterprise with a time accuracy of 100 milliseconds. References: https://www-03.ibm.com/systems/z/advantages/pso/stp/ntp.html