en CCNAS v11 ch07 cryptographic systems

... severe in embedded systems than in desktop systems Embedded systems often have power constraints Embedded systems often must operate under extreme environmental conditions Embedded systems have ... Embedded Systems Design An Introduction to Processes, Tools, and Techniques Arnold Berger CMP Books CMP Media LLC 1601 West 23rd Street, Suite 200 Lawrence, Kansas 66046...

Ngày tải lên: 16/08/2012, 09:40

... precision ratio used as measures in evaluating information retrieval systems, such as document retrieval systems and data retrieval systems? Here, A, B and C indicate the following A: The number of ... maintenance c) It is a database for storing software development tools and data models d) It is a database for storing source program analysis software and analysis results for reverse...

Ngày tải lên: 24/08/2012, 15:44

... employee has an assigned role code according to his/her role (i.e., system engineer, database engineer or network engineer in the systems development department) The participation management system ... Backup/Restore feature (i) Database backup and restoration can be done for the entire database or for individual tables (ii) “Entire database backup” saves the entire database...

Ngày tải lên: 24/08/2012, 15:44

... about database design for a sales management system, and then answer the Subquestions through Company W is an apparel retailer directly operating stores across the country The operations and systems ... Operations system Sales performance Store system Masters Operations database Masters, Information system sales performance, etc Analytical database Fig Sales Management System of Compa...

Ngày tải lên: 24/08/2012, 15:44

... wide-open world of the Internet, the networks of today are more open © 2012 Cisco and/or its affiliates All rights reserved Threats • There are four primary classes of threats to network security: ... affiliates All rights reserved 31 Trends Driving Network Security • Increase of network attacks • Increased sophistication of attacks • Increased dependence on the network • Wirel...

Ngày tải lên: 12/10/2015, 02:40

... be utilized: – Enforce minimum password length: security passwords min-length – Disable unattended connections: exec-timeout – Encrypt config file passwords: service password-encryption © 2012 ... occurs and when Authenticate access – Ensure that access is granted only to authenticated users, groups, and services – Limit the number of failed login attempts and the time between logins © ... re...

Ngày tải lên: 12/10/2015, 02:43

... auxiliary, and console login, exec, and enable commands Packet (interface mode) Dial-up and VPN access including asynchronous and ISDN (BRI and PRI) ppp and network commands © 2012 Cisco and/ or its ... AAA Accounting Remote Client Cisco Secure ACS Server AAA Router 1.When a user has been authenticated, the AAA accounting process generates a start message to begin the accoun...

Ngày tải lên: 12/10/2015, 02:46

... statement is added to the end Without sequence numbers the only way to add a statement between existing entries was to delete the ACL and recreate it • • Likewise, the only way to delete an entry ... to fully implement a security policy Order of statements: – ACLs have a policy of first match; when a statement is matched, the list is no longer examined – Ensure that statements at the top ......

Ngày tải lên: 12/10/2015, 02:52

... Event Monitoring and Management There are two key functions of event monitoring and management: Real-time event monitoring and management Analysis based on archived information (reporting) Event ... Features Sensors are connected to network segments A single sensor can monitor many hosts Sensors are network appliances tuned for intrusion detection analysis The operating system is “hardened....

Ngày tải lên: 12/10/2015, 02:54

... the frames to the wrong VLAN – The first switch strips the first tag off the frame and forwards the frame – The second switch then forwards the packet to the destination based on the VLAN identifier ... managing online users The Cisco NAM manages the Cisco NAS, which is the enforcement component of the Cisco NAC Appliance Cisco NAC Appliance Agent (NAA) – – Optiona...

Ngày tải lên: 12/10/2015, 02:56

... reserved Authentication • Data nonrepudiation is a similar service that allows the sender of a message to be uniquely identified • This means that a sender / device cannot deny having been the source ... Cipher • When Julius Caesar sent messages to his generals, he didn't trust his messengers • He encrypted his messages by replacing every letter: – A with a D – B with an E – and so on • His g...

Ngày tải lên: 12/10/2015, 02:58

... Conventional Private Networks © 2012 Cisco and/or its affiliates All rights reserved 15 Virtual Private Networks © 2012 Cisco and/or its affiliates All rights reserved 16 VPNs • A Virtual Private Network ... does not provide confidentiality (encryption) – It is appropriate to use when confidentiality is not required or permitted – All text is transported unencrypted • It only en...

Ngày tải lên: 12/10/2015, 03:02

... username scpADMIN privilege 15 password scpPa55W04D ip domain-name scp.cisco.com crypto key generate rsa general-keys modulus 1024 aaa new-model aaa authentication login default local aaa authorization ... steps: – Step Enable AAA with the aaa new-model global configuration command – Step Define a named list of authentication methods, with the aaa authentication login {default |list-name} m...

Ngày tải lên: 12/10/2015, 03:06

... the pre-installed licenses creates a permanent license – – The permanent license is activated by installing a permanent activation key using the activation-key command Only one permanent license ... conf t ciscoasa(config)# hostname CCNAS- ASA CCNAS- ASA(config)# domain-name ccnasecurity.com CCNAS- ASA(config)# enable password class CCNAS- ASA(config)# passwd cisco CCNAS- ASA(con...

Ngày tải lên: 12/10/2015, 03:09