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RAM 업그레이드시 이것만큼은 확인하고 구매해서 업그레이드 하자!
안녕하세요. 여러가지 IT 정보매체 CHCH 입니다. 이번에는 RAM 업그레이드시 주의해야할 사항에 대해서 제가 알고있는 것 전부 다 털어서 설명하고자 합니다. 특히 노트북 RAM 업그레이드 하실려는분들은 이 글을 반드시 참고해주세요. 1. 데스크탑 RAM? 노트북용 RAM? 첫번째로 RAM 업그레이드 하실 때 가장 많이 실수를 범하시는 것이 데스크탑 RAM과 노트북 RAM을 혼동하시는 것인데요. 주로 노트북 RAM을 업그레이드 하실려 할 때 컴퓨터에 관하여 잘 모르시는분들 중 데스크탑 RAM을 주문하시고 나서 노트북 뚜껑을 열었을 때 RAM 크기가 달라 낭패를 보신 경험이 대다수 이실 겁니다. 노트북용 RAM은 위 왼쪽 사진을 보시면 데스크탑 RAM과는 다르게 세로폭이 1.5배가량 넓고, 가로 길이가 1/2 정도 작은 크기를 가진 RAM입니다. 이 RAM은 정식 명칭이 SO-DIMM 이라는 노트북용 RAM으로 분류가 되어있으며, 만약 노트북 RAM을 업그레이드 하실려면 적어도 SO-DIMM RAM으로 주문하셔야 합니다. 컴퓨터와 규격 자체가 다르니 이 부분은 필히 주의하셔야 합니다. 2. DDR3? DDR4? DDR3L? 버전 차이점 RAM을 보시면 이름이 DDR3-12800 , DDR4-17000 등 앞에  " DDR " 이라는 영문 뒤에 붙어 있는 숫자는 RAM을 업그레이드 하시기전 대충 봐야 할 게 아닌 필수적으로 보아야 할 부분입니다. 특히 DDR 뒤 마지막 숫자인 3,4 이 부분을 제대로 확인하셔야 되는데, 그 이유는 DDR3 와 DDR4 RAM의 규격이 완전히 다릅니다. DDR3 슬롯에 DDR4 버전 RAM은 절대 장착이 불가이며, 반대로 DDR4 슬롯에 DDR3 RAM도 또한 장착이 절대로 불가합니다. 특히 RAM 버전중 DDR3, DDR3L 버전의 RAM을 많이 헷갈려 하십니다. 이 2개 버전의 RAM은 이론상으로는 동일 규격이 맞지만, 전력소모량이 다른 RAM 이라고 이해하시면 되는데요. 노트북 제품마다 서로 지원하는 모델이 있는 반면, 지원하지 않는 모델이 훨씬 많기도 하는데요. 특히 DDR3 슬롯에 DDR3L 버전 RAM이 장착이 되어도 상관이 없는 모델도 있지만 반대로 DDR3L 슬롯에 DDR3 버전 제품이 장착이 안되는 제품들도 있습니다. 어떤 노트북 제품은 무조건 DDR3 버전만 장착이 가능한 제품도 있으니, 구형 노트북일 수록 RAM 버전이 어떤 것인지 정확하게 확인하시고 구매하시기를 바라겠습니다. 3. 메모리 클럭차이 / 3,200MHz ? 2,666 MHz? 3번째는 클럭차이 입니다. 클럭차이 부분은 영문 버전만 동일하다면 같이 써도 무방합니다. 하지만 여기에는 치명적인 단점이 존재하는데요. 같은 버전이라 해도 클럭이 다르면 낮은 클럭으로 RAM이 읽혀진다는 것입니다. 예를 들자면 DDR4 PC4-21300 ( 2,666 MHz) 8 GB DDR4 PC4-25600 ( 3,200 MHz) 8GB 이렇게 RAM이 2가지 제품을 데스크탑에 같이 장착한다면 RAM  2개 중 낮은 클럭을 기준을 잡고 그 제품 성능에 동일하게 맞춘다는 단점이 있습니다. 라이젠 CPU에 3,200MHz를 맞추겠다고 PC4-25600을 달아도 안에 21300 버전인 2,666MHz 클럭이 가진 제품이 존재한다면 25600 제품이 21300 제품 속도를 낸다는 것이죠. 이 부분은 라이젠 3세대 이하인 CPU를 가지고 계신다면 필수적으로 보고 업그레이드를 진행하셔야 합니다. 4. 제조사 차이? 4번째는 제조사입니다. RAM도 또한 삼성, 에센코어, G.Skill, 커세어, 팀 그룹, 마이크론 등 수많은 제조사가 존재하는데요. DDR1, DDR2 시절의 RAM 경우에는 제조사별로 호환성 문제가 조금은 있었지만, DDR3 및 DDR4 경우는 제조사가 달라도 충분히 혼용이 가능하니, 최신 컴퓨터라 하시면 문제 없이 사용이 가능합니다. 다만! RAM 오버클럭을 한다면 제조사마다 RAM 오버 가능 수치인 오버 수율이 다 다르니, RAM 오버를 하고 싶으시다면 같은 제조사 제품을 구매하는 것으로 추천드리며 특히 삼성 RAM 위주로 구매하시면 되겠습니다. 삼성 RAM이 현재 존재하고 있는 RAM 제품 중에 오버수율이 제일 좋은 것으로 평가가 나 있기 때문에 G.Skill 및 커세어 같이 비싼 RAM이 조금 부담스러우시다면 삼성 시금치 RAM으로 오버를 땡겨보는 것을 추천드립니다. https://chchhsware.tistory.com/16 (본문출처) * 모든 사진은 Unsplash같은 무료사진 및 출처를 밝히고 사용하고 있습니다. * 제 블로그에 방문해주셔서 감사합니다. 제 글이 유익하셨다면 공감 한번만 눌러주시면 감사하겠습니다!
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(April-2021)Braindump2go 350-801 PDF and 350-801 VCE Dumps(Q176-Q200)
QUESTION 176 Which two steps should be taken to provision after the Self-Provisioning feature was configured for end users? A.Dial the self-provisioning IVR extension and associate the phone to an end user. B.Plug the phone into the network. C.Ask the Cisco UCM administrator to associate the phone to an end user. D.Enter settings menu on the phone and press *,*,# (star, star, pound). E.Dial the hunt pilot extension and associate the phone to an end user. Answer: AB QUESTION 177 On a cisco catalyst switch, which command is required to send CDP packets on a switch port that configures a cisco IP phone to transmit voice traffic in 802.1q frames tagged with the voice VLAN ID 221? A.Device(config-if)# switchport access vlan 221 B.Device(config-if)# switchport trunk allowed vlan 221 C.Device(config-if)# switchport vlan voice 221 D.Device(config-if)# switchport voice vlan 221 Answer: D QUESTION 178 An end used at a remote site is trying initiate an ad hoc conference call to an end user at the main site the conference bridge is configured to support G.711 remote user phone only support G.729 the remote end user receives an error message on the phone "cannot complete conference call, what is the cause of the issue? A.The remote phone does not have the conference feature assigned. B.A Media Termination Point is missing C.The transcoder resource is missing. D.A software conference bridge is not assigned Answer: C QUESTION 179 An administrator is in the process of moving cisco unity connection mailboxes between mailbox stores the administrator notices that some mailboxes have active message waiting indicators, what happens to these mailboxes when they are moved? A.The move will fall If MWI status Is active. B.Moving the mailboxes from one store to another falls If MWI Is turned on. C.If source and target mailbox store are not disabled. MWI status is not retained. D.The MWI status is retained after a mailbox is moved from one store to another. Answer: D QUESTION 180 Which command must be defined before an administrator changes the linecode value on an ISDN T1 PRI in slot 0/2 on an IOS-XE gateway? A.isdn incoming-voice voice B.pri-group timeslots 1-24 C.card type t1 0 2 D.voice-port 0/2/0:23 Answer: C QUESTION 181 Which DSCP class selector is necessary to mark scavenger traffic? A.CS1 B.AF21 C.AF11 D.CS2 Answer: A QUESTION 182 Which service must be enabled when LDAP on cisco UCM is used? A.Cisco AXL Web Service B.Cisco CallManager SNMP Service C.Cisco DirSync D.Cisco Bulk provisioning Service Answer: C QUESTION 183 Which two protocols should be configured for the cisco unity connection and cisco UCM integration? A.SIP B.H.323 C.MGCP D.RTP E.SCCP Answer: AE QUESTION 184 An end user at a remote site is trying to initiate an Ad Hoc conference call to an end user at the main site. The conference receives an error message on the phone: Cannot complete conference call. What is the cause of the issue? A.The transcoder resource Is missing. B.The remote phone does not have the conference feature assigned C.A software conference bridge is not assigned. D.A Media Termination Point is missing. Answer: A QUESTION 185 What dialed number match this cisco UCM route pattern? 1[23]XX A.1200 through 1399 only B.1230 through 1239 only C.12300 through 12399 only D.1200 through 1300 only Answer: D QUESTION 186 Users want their mobile phones to be able to access their cisco unity connection mailboxes with only having to enter their voicemail pin at the login prompt calling pilot number, where should an engineer configure this feature? A.message settings B.greetings C.alternate extensions D.transfer rules Answer: C QUESTION 187 Refer to the exhibit. Which Codec is negotiated? A.729ILBC B.711ulaw C.728 Answer: C QUESTION 188 An engineer is setting up a system with voice and video endpoints using auto-QoS policy on the switches. Which DSCP values are expected for interactive voice and video? A.EF AND AF41 B.EF AND AF21 C.EF AND CS3 D.EF AND CS6 Answer: A QUESTION 189 During the Cisco IP Phone registration process the TFTP download fails. What are two reasons for this issue'? (Choose two) A.The DNS server was not specified, which is needed to resolve a hostname in an Option 150 string. B.The Cisco IP Phone does not know the IP address of the TFTP server C.The Cisco IP Phone does not know the IP address of any of the Cisco UCM Subscriber nodes D.Option 100 string was not specified, or an incorrect Option 100 string was specified E.Option 150 string was not specified, or an incorrect Option 150 string was specified Answer: BE QUESTION 190 Refer to the exhibit. An administrator configures fax dial-peers on a Cisco IOS gateway and finds that faxes are not working correctly. Which change should be made to resolve this issue? A.codec g723ar63 B.codec g729br81 C.codec g726r32 D.codec g711ulaw Answer: D QUESTION 191 An administrator is integrating a Cisco Unity Express module to a Cisco UCME system A test call is placed to the Cisco Unity Express pilot number, but the administrator receives a busy signal. The dial- peer is configured as follows: How is this issue resolved? A.The dial-peer needs to be reconfigured to support the G 711 voice codec. B.The dial-peer needs to be reconfigured to support vad. C.The destination pattern needs to be changed to match the dialed number of 4100. D.The dial-peer needs to be reconfigured to support H 323 instead of SIP. Answer: A QUESTION 192 What is the difference between Cisco Unified Border Element and a conventional Session Border Controller? A.SIP security B.DTMF interworking C.Voice policy D.Address hiding Answer: C QUESTION 193 How does traffic policing respond to violations? A.AH traffic is treated equally. B.Excess traffic is retransmitted. C.Excess traffic is dropped. D.Excess traffic is queued. Answer: C QUESTION 194 Refer to the exhibit. An engineer is confining class of control for a user in Cisco UCM. Which change will ensure that the user is unable to call 2143? A.Change line partition to Partition_A B.Change line CSS to only contain Partition_B C.Set the user's line CSS to <None> D.Set the users device CSS to <None> Answer: D QUESTION 195 Users dial a 9 before a 10-digit phone number to make an off-net call All 11 digits are sent to the Cisco Unified Border Element before going out to the PSTN The PSTN provider accepts only 10 digits. Which configuration is needed on the Cisco Unified Border Element for calls to be successful? A.Option A B.Option B C.Option C D.Option D Answer: A QUESTION 196 A customer enters no IP domain lookup on the Cisco IOS XE gateway to suppress the interpreting of invalid commands as hostnames Which two commands are needed to restore DNS SRV or A record resolutions? (Choose two.) A.ip dhcp excluded-address B.ip dhcp-sip C.ip dhcp pool D.transport preferred none E.ip domain lookup Answer: DE QUESTION 197 An administrator is asked to implement toll fraud prevention in Cisco UCM, specifically to restrict off- net to off-net call transfers How is this implemented? A.Implement time-of-day routing. B.Use the correct route filters. C.Set the appropriate service parameter D.Enforce ad-hoc conference restrictions Answer: C QUESTION 198 A network administrator with ID392116981 has determined that a WAN link between two Cisco UCM clusters supports only 1 Mbps of bandwidth for voice traffic. How many calls does this link support if G.711 as the audio codec is used? A.15 B.16 C.13 D.12 Answer: D QUESTION 199 An engineer is asked to implement on-net/off-net call classification in Cisco UCM. Which two components are required to implement this configuration? (Choose two) A.SIP trunk B.CTI route point C.route group D.route pattern E.SIP route patterns Answer: AD QUESTION 200 An administrator installed a Cisco Unified IP 8831 Conference Phone that is failing to register. Which two actions are taken to troubleshoot the problem? (Choose two) A.Disable HSRP on lhe access layer switch. B.Verify that the switch port of the phone is enabled C.Check the RJ-65 cable. D.Verify that the RJ-11 cable is plugged into the PC port. E.Verify that the phone's network can access the option 150 server. Answer: BE 2021 Latest Braindump2go 350-801 PDF and 350-801 VCE Dumps Free Share: https://drive.google.com/drive/folders/1pALdeSmYT0960h3st7rEH4WExsy2Mjgq?usp=sharing