Tuesday, February 20, 2018

Cisco 642-874 Question Answer

Which network virtualization technology provides logical isolation of network traffic at Layer 3?

C. VRF-Lite

Answer: C

A network engineer is implementing virtualization into the enterprise network. Which system should be used to address policy enforcement at the distribution layer?

A. Cisco IOS based firewall
B. multilayer switches
C. integrated firewall services
D. identity services engine
E. intrusion protection systems

Answer: C

Tuesday, December 19, 2017

Microsoft Teams Calling, Cisco Spark Security Get Updates

Leaders of the unified communications market Microsoft and Cisco updated their product portfolios last week, as providers continue to address and promote calls and security, two key elements in their respective product offerings.

Microsoft last week released new call features from Microsoft Teams in the chat-based workspace in Office 365. Microsoft said the new call features of the devices provide "full-featured dialing capabilities," including call history. , retention and resumption, speed dialing, transfer, forwarding, caller ID masking, extension dialing, multiple call handling, simultaneous ringing, voicemail and text phone support.

New Microsoft Team call features are pushing Office 365 Skype for Business users to plan to move their telephones to their computers, said Irwin Lazar, an analyst at Nemertes Research, based in Mokena, Illinois.

To add calls to Teams, organizations first need Phone System, formerly called Cloud PBX, which is included with the Office 365 E5 business plan and is available as a complement to other Office 365 plans. Organizations can then subscribe to a Call Plan, formerly called PSTN Calls, for any number of users in the organization.

The call plan and the Office 365 phone system can create a telephone system for organizations, giving users a primary phone number and allowing them to make and receive calls to and from their organizations, Microsoft wrote in a blog.

 Microsoft Teams call updates in progress

Microsoft announced in September that it makes computers the primary communications client for calls and meetings in Office 365. Microsoft Teams, which is replacing Skype for Business in Office 365, also includes chat and video chat capabilities.

The new call features of the equipment indicate that Microsoft is complying with the roadmap of the equipment it established in October, said Lazar. The roadmap details the characteristics of Skype for Business that will be included in the Teams during the next year.

Microsoft has announced several ongoing updates for the computers, as the provider attempts to migrate Skype for Business Online users. Last month, for example, Microsoft launched a new PowerShell module that can help IT professionals set up and manage computers. PowerShell includes a scripting language with an interactive command-line shell to help IT professionals configure systems and automate administrative tasks.

Microsoft also released two new usage reports in the Office 365 administration center that allow IT groups to understand how users use computers to communicate and collaborate. The user activity report can track how many people participate in a chat on a channel, how many users communicate through private chat and how many participate in calls or meetings. The application usage report provides IT groups with information about how users connect to Microsoft computers, including mobile applications.

Even more Microsoft, Cisco news

In other Microsoft news, the provider will launch the Microsoft Whiteboard Preview application, a digital canvas where users can exchange ideas and collaborate. The application, available for download on devices with Windows 10, is designed for teams to think in person and remotely in real time on various devices.

Companies can use the application to work on product designs or diagram engineering plans, for example. Consumers can use a stylus or their fingertips to write notes or draw pictures. The application can also automatically save your work.

For Surface Hub customers, the preview application will eventually replace the native whiteboard application that is currently running on Surface Hub. Users can install the preview application along with the existing application.

In other Cisco news, the vendor partnered with AT & T to bring Cisco Spark to AT & T's commercial customers. Cisco Spark with AT & T is an application-centric, cloud-based service anchored by the AT & T network. AT & T that brings together collaboration tools in a single application.

The service also brings together Cisco Hosted Collaboration Solutions for AT & T for cloud-based voice calls, AT & T conferences with Cisco WebEx and Spark messages for chat and file sharing conversations. It also integrates with third-party applications. As a service provider, AT & T offers managed services based on Cisco technology.

"Cisco is placing our leading vendors at the center of our cloud strategy," Rowan Trollope, general manager of Cisco applications, said in a statement. "As we bring Cisco Spark and other SaaS solutions to market, we will join with our global service providers to jointly develop, sell and market."

Cisco Spark security obtains certification

Microsoft's main unified communications competitor, Cisco, is emphasizing security in its UC offering in the cloud, Cisco Spark. In the world of business collaboration applications, security is becoming a differentiator between the products of suppliers.

Cisco announced last week that Spark has achieved ISO 27001 certification, a security standard that defines policies, risk assessment and other controls. Jonathan Rosenberg, CTO of Cisco's collaboration business, tweeted that Spark is the first collaborative application for the team that has ISO 27001. Many companies require vendors to have this certification, Rosenberg wrote in a blog post.

To achieve the security standard, Cisco Spark security must meet and maintain various operational requirements, including incident management, inventory control, access controls, vulnerability analysis and personnel management. Instead of asking about every detail of security in the application, organizations can consult the certification, which covers the entire Spark application and the underlying data centers.

Rosenberg said some collaborative startups say their applications run in data centers certified by ISO 27001, which means that the software runs in an Amazon data center, for example, that has the certification. But certification, in this case, does not apply to the application itself.

"Getting the certification for the application itself is what really matters," he wrote, "since the application is what maintains and processes customer data." The ISO 27001 certification covers both Cisco Spark and WebEx, two services that share infrastructure.

Cisco Spark security also has end-to-end security and local key servers. Rosenberg suggested that more security functions are being worked on, as the provider seeks to make Spark "the safest collaboration tool on the planet."

The designation is important, said Lazar. "We continue to hear concerns, especially among regulated industries, related to the lack of demonstrable compliance and security controls for computer applications, and Cisco certification is a big step in alleviating those concerns."

Lazar said he expects Cisco Spark's security to obtain compliance with the General Data Protection Regulations in early 2018.

Monday, November 6, 2017

Cisco 642-874 Question Answer

A campus network in a switch block design requires redundant distribution switches, load sharing across uplinks, a loop-free topology, and only one gateway IP address per VLAN. Which switching technology meets all of the requirements?

C. Spanning Tree Protocol
D. EtherChannel

Answer: B

Sunday, September 10, 2017

Cisco 642-874 Question Answer

To which network layer should Cisco Express Forwarding be tuned to support load balancing and to make more informed forwarding decisions?

A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
E. Layer 5
F. Layer 6
G. Layer 7

Answer: D

Which STP enhancement can be configured on Layer 2 ports between distribution layer switches?

A. LoopGuard
B. PortFast
C. UplinkFast
D. RootGuard

Answer: A

Sunday, July 2, 2017

The Cisco Systems Target of Unusually Large Options Trading (CSCO)

Cisco Systems (NASDAQ CSCO) opened its doors at 31.41 on Friday. Cisco Systems has a one-year low of $ 28.17 and a one-year high of $ 34.60. The company has a market capitalization of $ 157.05 billion, a P / E ratio of 15.94 and a beta of 1.23. 50-day moving average price of the stock is $ 31.99 and its 200-day moving average price is $ 32.31.

Cisco Systems, Inc. (NASDAQ: CSCO) was the target of some unusual options sales on Friday. Stock traders bought 22,166 put options in stock. This is a 202% increase compared to the average volume of 7,346 put options.

Cisco Systems (NASDAQ: CSCO) last issued its quarterly profit data on Wednesday, May 17. The network equipment provider reported $ 0.60 earnings per share for the quarter, surpassing analysts' consensus estimates of $ 0.58 per $ 0.02. The firm had revenues of $ 11.94 billion in the quarter, compared with expectations of $ 11.90 billion analysts. Cisco Systems had a return on equity of 17.31% and a net margin of 20.61%. The company's quarterly revenues fell 0.5% year-on-year. During the same period of the previous year, the company registered $ 0.57 EPS. Stock analysts anticipate that Cisco Systems will record $ 2.38 EPS for the current fiscal year. The business also recently reported a quarterly dividend, which will be paid on Wednesday, July 26. Registered investors on Friday, July 7 will receive a dividend of $ 0.29 per share. This represents a dividend of $ 1.16 on an annualized basis and a dividend yield of 3.69%. The ex-dividend date for this dividend is Wednesday, July 5. The Dividend Ratio (DPR) of Cisco Systems is currently 58.29%.

In other news from Cisco Systems, insider John T. Chambers sold 295,537 shares of the company in a transaction dated Wednesday, May 24. Shares were sold at an average price of $ 31.52, for a total transaction of $ 9,315,326.24. The transaction was disclosed in a filing with the SEC, which is available through the SEC's website. In addition, SVP Karen Walker sold 7,802 shares of the company in a transaction dated Tuesday, June 13. Shares were sold at an average price of $ 31.29, for a total transaction of $ 244,124.58. After the sale, the senior vice president now directly owns 178,577 shares of the company, valued at $ 5,587,674.33. The disclosure of this sale can be found here. During the last ninety days, the insiders have sold 396,179 shares of the company's shares for $ 12,503,407. The insiders own 0.11% of the shares of the company.

Several large investors have recently changed their holdings of CSCO. Parsons Capital Management Inc. RI increased its share of Cisco Systems shares by 4.5% in the first quarter. Parsons Capital Management Inc. now owns 117,524 shares of the network equipment supplier's stock for $ 3,972,000 after purchasing 5,110 additional shares during the period.

Atlantic Trust LLC increased its share of Cisco Systems shares by 5.2% in the first quarter. Atlantic Trust LLC now owns 99,980 shares of the network equipment supplier's stock for $ 3,379,000 after buying a total of 4,904 shares during the period. Laurel Wealth Advisors Inc. increased its share of Cisco Systems shares by 6.3% in the first quarter. Laurel Wealth Advisors Inc. now owns 88,847 shares of the network equipment provider's stock for $ 3,002,000 after purchasing 5,303 additional shares during the period. Perigon Wealth Management LLC increased its share of Cisco Systems shares by 9.4% in the first quarter. Perigon Wealth Management LLC now owns 173,311 shares of the network equipment provider shares for $ 5,858,000 after purchasing 14,920 additional shares during the period. Finally, Watermark Asset Management Inc. bought a new equity stake in Cisco Systems during the first quarter for $ 122,000. Hedge funds and other institutional investors own 76.14% of the company's shares.

Cisco Systems Company Profile Cisco Systems, Inc. designs and sells a range of products, offers services and offers integrated solutions to develop and connect networks around the world. The Company operates through three geographic segments: America; Europe, the Middle East and Africa (EMEA) and Asia Pacific, Japan and China (APJC).

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Monday, April 17, 2017

Cisco 642-874 Question Answer

A network engineer must create a Layer 2 switch block design that has deterministic convergence and is loop-free at Layer 2. Which two switch block elements are needed to meet the requirements? (Choose two.)

A. Layer 3 link between distribution switches
B. HSRP with interface tracking on uplinks to core switches
C. RPVST with equal bridge priority on distribution switches
D. VLANs that do not span access switches
E. Layer 2 link between distribution switches

Answer: AD

Which feature set enables the full OSPF routing process when using a Cisco Catalyst 3750X Switch?

A. LAN base
B. IP base
C. IP services
D. enterprise access

Answer: C

Sunday, November 13, 2016

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